Document:

EXHIBIT 10.57

                          REGISTRATION RIGHTS AGREEMENT
                          -----------------------------

         This REGISTRATION RIGHTS AGREEMENT ("Agreement") is made as of January
3, 2001, by and among LaserSight Incorporated, a Delaware corporation (the
"Company"), with headquarters located at 3300 University Boulevard, Suite 140,
Winter Park, Florida 32792, and Luis A. Ruiz, M.D. and Sergio Lenchig
(collectively, "Licensors"), with regard to the following:

                                    RECITALS
                                    --------

         A. In connection with the Amended and Restated License and Royalty
Agreement dated of even date herewith by and among the LaserSight Technologies,
Inc., a wholly-owned subsidiary of the Company, and Licensors (the "License
Agreement"), the Company has agreed, upon the terms and subject to the
conditions contained therein, to issue to Licensors an aggregate of 730,552
shares of the Company's common stock, par value $.001 per share (the "Common
Stock"). The shares of Common Stock to be issued to Licensors under the License
Agreement shall be referred to herein as the "Securities".

         B. To induce Licensors to execute and deliver the License Agreement,
the Company has agreed to provide to Licensors certain rights to a registration
of the Securities by the Company under the Securities Act of 1933 and the rules
and regulations thereunder, or any similar successor statute (collectively, the
"Securities Act"), and applicable state securities laws.

                                   AGREEMENTS
                                   ----------

         In consideration of the mutual covenants contained herein and other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Company and Licensors agree as follows:

1.       DEFINITIONS

         As used in this Agreement, the following terms shall have the meanings
specified:

         Advice:  See Section 4 hereof.
         ------

         Agreement:  See the introductory paragraphs hereto.
         ---------

         Blackout Event means a determination by the Board made in good faith,
         --------------
after consulting with outside securities counsel, that the registration of
Registrable Securities under the Securities Act or the continuation of the
disposition of Registrable Securities pursuant to an effective Piggy-Back
Registration Statement at such time (i) would have a material adverse effect
upon a proposed material sale of all (or substantially all) of the assets of the
Company or a material merger, reorganization, recapitalization or similar
current transaction materially affecting the capital structure or equity
ownership of the Company, or (ii) would require the Company to make a public
disclosure of information, which disclosure would have a material adverse effect
on the Company.

         Blackout Period:  See Section 3(a) hereof.
         ---------------

<PAGE>

         Board:  The Board of Directors of the Company.
         -----

         Claim:  See Section 6(a) hereof.
         -----

         Common Stock:  See the introductory paragraphs hereto.
         ------------

         Company:  See the introductory paragraphs hereto.
         -------

         Exchange Act:  The Securities Exchange Act of 1934 and the rules and
         ------------
regulations of the SEC promulgated thereunder.

         Form S-3: Form S-3 of the SEC under the Securities Act or any successor
         --------
form.

         Holdback Period:  See Section 3(b) hereof.
         ---------------

         Holder:  Any registered holder of a Registrable Security or Registrable
         ------
Securities, including, without limitation, the Licensors (and any of Licensors'
assignees).

         Indemnified Person:  See Section 6(c) hereof.
         ------------------

         Indemnifying Person:  See Section 6(c) hereof.
         -------------------

         License Agreement:  See the introductory paragraphs hereto.
         -----------------

         Licensors: See the introductory paragraphs hereto.
         ---------

         Losses:  See Section 6(a) hereof.
         ------

         NASD:  See Section 4(j) hereof.
         ----

         Other Holders:  See Section 2(a) hereof.
         -------------

         Other Shares:  See Section 2(a) hereof.
         ------------

         Other Investors: Any holder of equity securities of the Company or any
         ---------------
securities convertible into or exercisable or exchangeable for such equity
securities, which holder is entitled by written agreement with the Company to
have some or all of such securities included in a Piggy-Back Registration
Statement.

         Participant:  See Section 6(a) hereof.
         -----------

         Person: An individual, trustee, corporation, partnership, limited
         ------
liability company, trust, unincorporated association, business association, firm
or other legal entity.

<PAGE>

         Piggy-Back Registration Statement:  See Section 2(a) hereof.
         ---------------------------------

         Prospectus: The prospectus included in any Piggy-Back Registration
         ----------
Statement (including, without limitation, any prospectus subject to completion
and a prospectus that includes any information previously omitted from a
prospectus filed as part of an effective registration statement in reliance upon
Rule 430A promulgated under the Securities Act), as amended or supplemented by
any prospectus supplement, and all other amendments and supplements to the
Prospectus, including post-effective amendments, and all material incorporated
by reference or deemed to be incorporated by reference in such Prospectus.

         Registrable Securities means any of the Securities. As to any
         --------------------------------------------------
particular Registrable Securities held by a Holder, such securities shall cease
to be Registrable Securities when (i) a Piggy-Back Registration Statement with
respect to the offering of such securities by the Holder thereof shall have been
declared effective under the Securities Act and such securities shall have been
disposed of by such Holder pursuant to such Piggy-Back Registration Statement,
(ii) such securities may at the time of determination be sold to the public
pursuant to Rule 144 without any restriction on the amount of securities which
may be sold by such Holder without the lapse of any further time or the
satisfaction of any condition, or (iii) such securities shall have been
otherwise transferred by such Holder and new certificates for such securities
not bearing a legend restricting further transfer shall have been delivered by
the Company or its transfer agent, and subsequent disposition of such securities
shall not require registration or qualification under the Securities Act or any
similar state law.

         Registration Expenses:  See Section 5(b) hereof.
         ---------------------

         Registration Period:  See Section 2(c) hereof.
         -------------------

         Registration Statement: Any registration statement of the Company filed
         ----------------------
with the SEC under the Securities Act, including the Prospectus, all amendments
and supplements to such registration statement, post-effective amendments, all
exhibits, and all material incorporated by reference or deemed to be
incorporated by reference in such registration statement.

         Requested Shares:  See Section 2(a) hereof.
         ----------------

         Rule 144: Rule 144 promulgated under the Securities Act, as such Rule
         --------
may be amended from time to time, or any similar rule or regulation hereafter
adopted by the SEC providing for public offers and sales of securities made in
compliance therewith resulting in offers and sales by subsequent holders that
are not affiliates of an issuer of such securities being free of the
registration and prospectus delivery requirements of the Securities Act.

         Rule 415: Rule 415 promulgated under the Securities Act, as such Rule
         --------
may be amended from time to time, or any similar rule or regulation hereafter
adopted by the SEC.

         SEC:  The Securities and Exchange Commission or any successor federal
         ---
agency charged with the enforcement of the federal securities laws.

<PAGE>

         Securities Act: See the introductory paragraphs hereto.
         --------------

         Subsidiary: Any corporation of which the Company owns securities
         ----------
representing a majority of the outstanding voting power or any partnership of
which the Company (or a Subsidiary) holds a majority of the general partner
interest.

         Underwritten Offering: A public offering of Common Stock, or other
         ---------------------
securities convertible into, or exercisable or exchangeable for, Common Stock
that is underwritten on a firm commitment basis; provided that such offering
shall be exclusively for the account of any one or more of the Company or
Licensors (or any of Licensors' assignees).

2.       PIGGY-BACK REGISTRATION RIGHTS

         (a) If during the Registration Period (as defined herein) the Company
proposes or is required to file with the SEC a registration statement under the
Securities Act relating to any shares of Common Stock (other than a registration
statement on Form S-8 or Form S-4 or any successor forms thereto, or any other
registration statement that does not permit the inclusion therein of the
Registrable Securities) (the "Piggy-Back Registration Statement"), the Company
will each such time give prompt written notice of its intention to do so to each
Holder. Upon the written request of any Holder given within 10 days after the
delivery or mailing of such notice from the Company, the Company will use
commercially reasonable efforts to include in such Piggy-Back Registration
Statement that number of the Securities specified by Holder in such written
request (subject to the limitations set forth in this Section 2(a) and in
Section 2(b) below) (the "Requested Shares") so as to permit the public sale of
such Requested Shares, provided that if the managing underwriter or underwriters
advise the Company that marketing factors require a limit on the number of
shares to be underwritten, the Company may (subject to the limitations set forth
below) exclude all Requested Shares from, or limit the number of Requested
Shares to be included in, the Piggy-Back Registration Statement and
underwriting. In such event, the Company shall so advise each requesting Holder,
and the number of Requested Shares and other shares ("Other Shares") requested
to be included in such Piggy-Back Registration Statement and underwriting by
other persons or entities that are then stockholders of the Company ("Other
Holders"), after providing for all shares that the Company proposes to offer and
sell for its own account, shall be allocated among the Requesting Holders and
Other Holders pro rata on the basis of (i) the number of Requested Shares then
held by the requesting Holders, and (ii) the aggregate number of Other Shares
then held by Other Holders.

         (b) The right of any Holder to registration shall be conditioned upon
(i) such Holder's execution of the underwriting agreement agreed to among the
Company and the managing underwriters selected by the Company for such
underwritten offering, (ii) such Holder's completion and execution of all
customary questionnaires and other documents which must be executed in
connection with such underwriting agreement, and (iii) such Holder supplying the
Company and the underwriter such additional information as may be necessary to
register such Holder's Registrable Securities.

<PAGE>

         (c) The registration rights granted pursuant to this Section 2, shall
commence on July 1, 2001 and continue until the first to occur of (i) the date
on which all of the Securities have been sold by the Holders, and (ii) the date
on which all of the Securities may be immediately sold to the public without
registration conditions or limitations, whether pursuant to Rule 144 or
otherwise. The period of time commencing on July 1, 2001 and ending on the
earliest of the dates described in items (i) and (ii) of this Section 2(c) shall
be referred to as the "Registration Period".

3.       BLACKOUT AND HOLDBACK EVENTS

         (a) During any period of up to 90 days' duration following the
occurrence of a Blackout Event (a "Blackout Period"), the Company shall not be
required to file, or cause to be declared effective, under the Securities Act
any Piggy-Back Registration Statement hereunder, or, if applicable, the Holders
will discontinue the offer and sale of Registrable Securities pursuant to the
Piggy-Back Registration Statement.

         (b) The Holders shall not, if requested by the managing underwriter or
underwriters of an Underwritten Offering, effect any public or private sale of
any Common Stock, including a sale pursuant to Rule 144, during the period
("Holdback Period") beginning 14 days prior to, and ending 90 days after, the
effective date of the registration statement relating to such Underwritten
Offering.

         (c) The Company shall promptly notify the Holders in writing of any
decision not to file a Piggy-Back Registration Statement or not to cause a
Piggy-Back Registration Statement to be declared effective or to discontinue
sales of Registrable Securities pursuant to this Section 3, which notice shall
set forth the reason for such decision (but not disclosing any nonpublic
material information) and shall include an undertaking by the Company promptly
to notify the Holders as soon as sales may resume.

4.       REGISTRATION PROCEDURES

         In connection with the filing of a Piggy-Back Registration Statement by
the Company, the Company shall effect such registrations to permit the sale of
the Registrable Securities covered thereby in accordance with the intended
method or methods of disposition thereof, and in connection with such Piggy-Back
Registration Statement the Company shall:

         (a) Prior to the filing of the Piggy-Back Registration Statement or any
Prospectus or any amendments or supplements thereto, the Company shall provide
Licensors with a copy of such Piggy-Back Registration Statement or any
Prospectus or any amendments or supplements thereto.

         (b) Notify the selling Holders of Registrable Securities promptly (but
in any event within five business days), and confirm such notice in writing: (i)
when a Prospectus or any Prospectus supplement or post-effective amendment has
been filed, and, with respect to a Piggy-Back Registration Statement or any
post-effective amendment, when the same has become effective under the
Securities Act, and (ii) of the issuance by the SEC of any stop order suspending
the effectiveness of a Piggy-Back Registration Statement or of any order
preventing or suspending the use of any preliminary prospectus or the initiation
of any proceedings for that purpose.

<PAGE>

         (c) Use its reasonable best efforts to prevent the issuance of any
order suspending the effectiveness of a Piggy-Back Registration Statement or of
any order preventing or suspending the use of a Prospectus or suspending the
qualification (or exemption from qualification) of any of the Registrable
Securities for sale in any jurisdiction and, if any such order is issued, to use
its reasonable best efforts to obtain the withdrawal of any such order at the
earliest practicable time.

         (d) Furnish to each selling Holder of Registrable Securities at the
sole expense of the Company one conformed copy of the Piggy-Back Registration
Statement, as applicable, and each post-effective amendment thereto.

         (e) Deliver to each selling Holder of Registrable Securities at the
sole expense of the Company as many copies of the Prospectus or Prospectuses
(including each form of preliminary prospectus) and each amendment or supplement
thereto; and, subject to the last paragraph of this Section 4, the Company
consents to the use of such Prospectus and each amendment or supplement thereto
by each of the selling Holders of Registrable Securities in connection with the
offering and sale of the Registrable Securities covered by such Prospectus and
any amendment or supplement thereto.

         (f) Prior to any public offering of Registrable Securities, to use its
reasonable best efforts to register or qualify, and to cooperate with the
selling Holders of Registrable Securities in connection with the registration or
qualification (or exemption from such registration or qualification) of such
Registrable Securities for offer and sale under the securities or blue sky laws
of such jurisdictions within the United States as any selling Holder reasonably
requests; keep each such registration or qualification (or exemption therefrom)
effective during the period such Piggy-Back Registration Statement is required
to be kept effective and do any and all other acts or things reasonably
necessary or advisable to enable the disposition in such jurisdictions of the
Registrable Securities covered by the applicable Piggy-Back Registration
Statement; provided, however, that the Company shall not be required to (i)
qualify to do business in any jurisdiction where it would not otherwise be
required to qualify but for this Section 4(f), (ii) subject itself to general
taxation in any such jurisdiction, (iii) file a general consent to service of
process in any such jurisdiction, (iv) provide any undertakings that cause the
Company material expense or burden, or (v) make any change in its charter or
by-laws, which in each case the Board determines to be contrary to the best
interests of the Company and its stockholders.

         (g) Cooperate with the selling Holders of Registrable Securities to
facilitate the timely preparation and delivery of certificates representing
Registrable Securities to be sold, which certificates shall not bear any
restrictive legends and shall be in a form in compliance with any applicable
rules of a stock exchange on which the Common Stock is then listed; and enable
such Registrable Securities to be in such denominations and registered in such
names as Holders may reasonably request.

         (h) Upon the occurrence of any event or any information becoming known
to the Company that makes any statement made in such Piggy-Back Registration
Statement or related Prospectus or any document incorporated or deemed to be
incorporated therein by reference untrue in any material respect, as promptly as

<PAGE>

practicable prepare and (subject to Section 4(a) hereof) file with the SEC, at
the sole expense of the Company, a supplement or post-effective amendment to
such Piggy-Back Registration Statement or a supplement to the related Prospectus
or any document incorporated or deemed to be incorporated therein by reference,
or file any other required document so that, as thereafter delivered to
Licensors of the Registrable Securities being sold thereunder, any such
Prospectus will not contain an untrue statement of a material fact or omit to
state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading.

         (i) Comply with all applicable rules and regulations of the SEC and
make generally available to its security holders earnings statements satisfying
the provisions of Section 11(a) of the Securities Act and Rule 158 thereunder
(or any similar rule promulgated under the Securities Act) no later than 90 days
after the end of any 12-month period (or 120 days after the end of any 12-month
period if such period is a fiscal year) commencing on the first day of the first
fiscal quarter of the Company after the effective date of a Piggy-Back
Registration Statement, which statements shall cover said 12-month periods.

         (j) Cooperate with each seller of Registrable Securities covered by any
Piggy-Back Registration Statement in connection with any filings required to be
made with the National Association of Securities Dealers, Inc. (the "NASD").

         (k) Use its reasonable best efforts to cause all Registrable Securities
relating to any Piggy-Back Registration Statement to be listed on each
securities exchange, if any, on which similar securities issued by the Company
are then listed.

         The Company may require each seller of Registrable Securities as to
which any registration is being effected to furnish to the Company such
information regarding such seller and the distribution of such Registrable
Securities as the Company may, from time to time, reasonably request. The
Company may exclude from such registration the Registrable Securities of any
seller so long as such seller fails to furnish such information within a
reasonable time after receiving such request. Each seller as to which any
Piggy-Back Registration Statement is being effected agrees to furnish promptly
to the Company all information required to be disclosed in order to make the
information previously furnished to the Company by such seller not materially
misleading.

         Each Holder of Registrable Securities understands that the Securities
Act may require delivery of a Prospectus in connection with any sale thereof
pursuant to a Piggy-Back Registration Statement, and each such Holder shall

<PAGE>

comply with the applicable Prospectus delivery requirements of the Securities
Act in connection with any such sale.

         Each Holder of Registrable Securities agrees by acquisition of such
Registrable Securities that, upon actual receipt of any notice from the Company
of the happening of any event of the kind described in Section 4(b)(ii) hereof
or any information becoming known that makes any statement made in such
Piggy-Back Registration Statement or related Prospectus or any document
incorporated or deemed to be incorporated therein by reference untrue in any
material respect, such Holder will forthwith discontinue disposition of such
Registrable Securities covered by such Piggy-Back Registration Statement or
Prospectus to be sold by such Holder until such Holder's receipt of the copies
of the supplemented or amended Prospectus contemplated by Section 4(e) hereof,
or until it is advised in writing (the "Advice") by the Company that the use of
the applicable Prospectus may be resumed, and has received copies of any
amendments or supplements thereto.

5.       REGISTRATION EXPENSES

         (a) All Registration Expenses shall be borne by the Company.
Notwithstanding the foregoing, the sellers of the Registrable Securities being
registered shall pay all (i) brokerage or underwriting fees, discounts and
commissions attributable to the sale of such Registrable Securities, (ii) the
fees and disbursements of any counsel or other advisors or experts retained by
such sellers (severally or jointly), and (iii) transfer taxes on resale of any
of the Registrable Securities by such sellers.

         (b) For purposes of this Agreement, "Registration Expenses" shall mean
all fees and expenses incident to the compliance with this Agreement by the
Company (other than fees and expenses referred to in the second sentence of
Section 5(a) hereof), including, without limitation, (i) all registration and
filing fees, including, without limitation, (A) any SEC or NASD filing fees and
(B) fees and expenses of compliance with state securities or blue sky laws, (ii)
duplicating and copying expenses, (iii) messenger, telephone and delivery
expenses incurred by the Company, (iv) all fees and disbursements of counsel for
the Company, (v) fees and expenses of all other Persons retained by the Company,
including annual or special audit and "comfort" letters, (vi) stock exchange
listing fees and expenses, if any, and (vii) the expenses relating to printing
and distributing the Piggy-Back Registration Statement and any other documents
necessary in order to comply with this Agreement.

6.       INDEMNIFICATION AND CONTRIBUTION

         (a) The Company agrees to indemnify and hold harmless each Holder of
Registrable Securities, the officers and directors of each such Person, and each
Person, if any, who controls any such Person within the meaning of either
Section 15 of the Securities Act or Section 20 of the Exchange Act (each, a
"Participant"), from and against any and all losses, claims, damages and
liabilities (collectively, "Losses") (including, without limitation, the
reasonable legal fees and other expenses actually incurred in connection with
any suit, action, proceeding (including any governmental or regulatory
investigation), claim or demand (a "Claim")) caused by, arising out of or based
upon any untrue statement or alleged untrue statement of a material fact
contained in any Piggy-Back Registration Statement (or any amendment thereto) or
Prospectus (as amended or supplemented from time to time) or any preliminary
prospectus, or caused by, arising out of or based upon any omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein, in the case of the Prospectus in light
of the circumstances under which they were made, not misleading, except insofar
as such Losses are caused by any untrue statement or omission or alleged untrue
statement or omission made in reliance upon and in conformity with information
relating to any Participant furnished to the Company in writing by such
Participant expressly for use therein; provided, however, that the Company will
not be liable if such untrue statement or omission or alleged untrue statement

<PAGE>

or omission was contained or made in any preliminary prospectus and corrected in
the Prospectus or any amendment or supplement thereto and the Prospectus does
not contain any other untrue statement or omission or alleged untrue statement
or omission of a material fact that was the subject matter of the related
proceeding and any such Loss suffered or incurred by the Participants resulted
from any Claim by any Person who purchased Registrable Securities which are the
subject thereof from such Participant and it is established in the related
proceeding that such Participant failed to deliver or provide a copy of the
Prospectus (as amended or supplemented) to such Person with or prior to the
confirmation of the sale of such Registrable Securities sold to such Person if
required by applicable law, unless such failure to deliver or provide a copy of
the Prospectus (as amended or supplemented) was a result of noncompliance by the
Company with this Agreement.

         (b) Each Participant agrees, severally and not jointly, to indemnify
and hold harmless the Company, its directors, its officers who sign the
Piggy-Back Registration Statement, and each Person who controls the Company
within the meaning of Section 15 of the Securities Act or Section 20 of the
Exchange Act to the same extent as the foregoing indemnity from the Company to
each Participant, but only with reference to information relating to such
Participant furnished to the Company in writing by such Participant expressly
for use in such Piggy-Back Registration Statement or Prospectus, any amendment
or supplement thereto, or any preliminary prospectus. The liability of any
Participant under this paragraph shall in no event exceed the proceeds received
by such Participant from sales of Registrable Securities giving rise to such
obligations.

         (c) If any Claim shall be brought or asserted against any Person in
respect of which indemnity may be sought pursuant to either of the two preceding
paragraphs, such Person (the "Indemnified Person") shall promptly notify the
Person against whom such indemnity may be sought (the "Indemnifying Person") in
writing, and the Indemnifying Person shall retain counsel reasonably
satisfactory to the Indemnified Person to represent the Indemnified Person and
any others the Indemnifying Person may reasonably designate in such Claim and
shall pay the reasonable fees and expenses actually incurred by such counsel
related to such proceeding; provided, however, that the failure to so notify the
Indemnifying Person shall not relieve it of any obligation or liability which it
may have hereunder or otherwise. In any such proceeding, any Indemnified Person
shall have the right to retain its own counsel, but the fees and expenses of
such counsel shall be at the expense of such Indemnified Person unless (i) the
Indemnifying Person and the Indemnified Person shall have mutually agreed to the
contrary, (ii) the Indemnifying Person shall have failed within a reasonable
period of time to retain counsel reasonably satisfactory to the Indemnified
Person, or (iii) the named parties in any such proceeding (including any
impleaded parties) include both the Indemnifying Person and the Indemnified
Person or any affiliate and representation of both parties by the same counsel
would be inappropriate due to actual or potential differing interests between
them. The Indemnifying Person shall not, in connection with any one such
proceeding or separate but substantially similar related proceedings in the same
jurisdiction arising out of the same general allegations, be liable for the fees
and expenses of more than one separate firm (in addition to any local counsel)
for all Indemnified Persons, and all such fees and expenses shall be reimbursed
promptly as they are incurred. If the Company shall be the Indemnifying Person,
any such separate firm for the Indemnified Persons shall be designated in

<PAGE>

writing by Participants who sold a majority in interest of Registrable
Securities sold by all such Participants and reasonably acceptable to the
Company. If the Company shall be the Indemnified Person, any such separate firm
for the Company, its directors, its officers who sign a Piggy-Back Registration
Statement and such control Persons of the Company shall be designated in writing
by the Company. No Indemnifying Person shall be liable for any settlement of any
proceeding effected without its prior written consent (which consent shall not
be unreasonably withheld or delayed), but if settled with such consent or if
there be a final judgment for the plaintiff for which the Indemnified Person is
entitled to indemnification pursuant to this Agreement, the Indemnifying Person
shall indemnify and hold harmless each Indemnified Person from and against any
loss or liability by reason of such settlement or judgment. No Indemnifying
Person shall, without the prior written consent of the Indemnified Persons
(which consent shall not be unreasonably withheld or delayed), effect any
settlement or compromise of any pending or threatened proceeding in respect of
which any Indemnified Person is or could have been a party, or indemnity could
have been sought hereunder by such Indemnified Person, unless such settlement
involves only the payment of money damages that are actually paid by the
Indemnifying Person or includes an unconditional written release of such
Indemnified Person, in form and substance reasonably satisfactory to such
Indemnified Person, from all liability on claims that are the subject matter of
such proceeding.

         (d) If the indemnification provided for in the first and second
paragraphs of this Section 6 is for any reason unavailable to, or insufficient
to hold harmless, an Indemnified Person in respect of any Losses, then each
Indemnifying Person under such paragraphs, in lieu of indemnifying such
Indemnified Person thereunder and in order to provide for just and equitable
contribution, shall contribute to the amount paid or payable by such Indemnified
Person as a result of such Losses, in such proportion as is appropriate to
reflect the relative fault of the Indemnifying Person or Persons on the one hand
and the Indemnified Person or Persons on the other in connection with the
statements or omissions or alleged statements or omissions that resulted in such
Losses (or actions in respect thereof) as well as any other relevant equitable
considerations. The relative fault of the parties shall be determined by
reference to, among other things, whether the untrue or alleged untrue statement
of a material fact or the omission or alleged omission to state a material fact
relates to information supplied by the Indemnifying Person on the one hand or
such Indemnified Person, as the case may be, on the other, the parties' relative
intent, knowledge, access to information and opportunity to correct or prevent
such statement or omission, and any other equitable considerations appropriate
in the circumstances.

         (e) The parties agree that it would not be just and equitable if
contribution pursuant to this Section 6 were determined by pro rata allocation
or by any other method of allocation that does not take account of the equitable
considerations referred to in the immediately preceding paragraph. The amount
paid or payable by an Indemnified Person as a result of the Losses referred to
in the immediately preceding paragraph shall be deemed to include, subject to
the limitations set forth above, any reasonable legal or other expenses actually
incurred by such Indemnified Person in connection with investigating or
defending any such Claim. Notwithstanding the provisions of this Section 6, in
no event shall a Participant be required to contribute any amount in excess of
the amount by which proceeds received by such Participant from sales of
Registrable Securities exceeds the amount of any damages that such Participant
has otherwise been required to pay or has paid by reason of such untrue or
alleged untrue statement or omission or alleged omission. No Person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) shall be entitled to contribution from any Person who was not
guilty of such fraudulent misrepresentation.

<PAGE>

         (f) Any Losses for which an indemnified party is entitled to
indemnification or contribution under this Section shall be paid by the
Indemnifying Person to the Indemnified Person as such Losses are incurred. The
indemnity and contribution agreements contained in this Section 6 and the
representations and warranties of the Company set forth in this Agreement shall
remain operative and in full force and effect regardless of (i) any
investigation made by or on behalf of any of Licensors, any Holder, any person
who controls Licensors or any Holder, or any officers or directors of Licensors
or such Holder, and (ii) any termination of this Agreement.

         (g) The indemnity and contribution covenants contained in this Section
6 are in addition to any liability which any Indemnifying Person may otherwise
have to any Indemnified Person.

7.       RULE 144

         The Company will file the reports required to be filed by it under the
Exchange Act in a timely manner in accordance with the requirements of the
Exchange Act. The Company will also take such further action as any Holder of
Registrable Securities issued by the Company may reasonably request, to the
extent required from time to time to enable such holder to sell Registrable
Securities without registration under the Securities Act within the limitation
of the exemptions provided by Rule 144(k).

8.       MISCELLANEOUS

         (a) The provisions of this Agreement may not be amended, modified or
supplemented, and waivers or consents to departures from the provisions hereof
may not be given, otherwise than with the prior written consent of (i) the
Company, and (ii) the Holders of not less than a majority in aggregate amount of
the then-outstanding Registrable Securities; provided, however, that Section 4
and this Section 8(a) may not be amended, modified or supplemented without the
prior written consent of each Holder (including any person who was a Holder of
Registrable Securities disposed of pursuant to any Piggy-Back Registration
Statement) affected by any such amendment, modification or supplement.
Notwithstanding the foregoing, a waiver or consent to depart from the provisions
hereof with respect to a matter that relates exclusively to the rights of
Holders of Registrable Securities whose securities are being sold pursuant to a
Piggy-Back Registration Statement and that does not directly or indirectly
affect, impair, limit or compromise the rights of other Holders of Registrable
Securities may be given by Holders of at least a majority in aggregate amount of
the Registrable Securities being sold by such Holders pursuant to such
Piggy-Back Registration Statement.

         (b) Any notice herein required or permitted to be given shall be in
writing and may be personally served or delivered by nationally-recognized
overnight courier or by facsimile-machine confirmed telecopy, and shall be
deemed delivered at the time and date of receipt (which shall include telephone
line facsimile transmission). Each party shall provide notice to the other party
of any change in address. The addresses for such communications shall be:

<PAGE>

                           If to the Company:

                           LaserSight Incorporated
                           3300 University Boulevard, Suite 140
                           Winter Park, Florida  32792
                           Telecopy: (407) 678-9981
                           Attention: Chief Financial Officer

                           with a copy to:

                           The Lowenbaum Partnership, L.L.C.
                           222 South Central Avenue, Suite 901
                           St. Louis, Missouri 63105
                           Telecopy: (314) 746-4848
                           Attention: Timothy L. Elliott

                           and

                           Sonnenschein Nath & Rosenthal
                           8000 Sears Tower
                           Chicago, Illinois 60606
                           Telecopy: (312) 876-7934
                           Attention: Paul Miller

                           If to Licensors:

                           Luis A. Ruiz, M.D. and Sergio Lenchig
                           Calle 120 No. 20A-44, Apartment 401
                           Santefe de Bogota, Colombia
                           South America
                           Telecopy:57-1-629-3229 - attn: Sergio Lenchig
                           Telecopy:57-1-218-5730 - attn: Luis A. Ruiz, M.D.

                           and

                           McCandlish Kaine
                           1111 East Main Street, 15th Floor
                           Richmond, Virginia 23219
                           Telecopy: (804) 775-3800
                           Attention: Allan S. Buffenstein, Esq.

         (c) This Agreement shall inure to the benefit of and be binding upon
the successors and assigns of each of the parties hereto, and the Holders;
provided, however, that this Agreement shall not inure to the benefit of, or be
binding upon, a successor or assign of a Holder unless and to the extent such
successor or assign holds Registrable Securities.

<PAGE>

         (d) This Agreement may be executed in two or more counterparts,
including, without limitation, by facsimile transmission, all of which
counterparts shall be considered one and the same agreement and shall become
effective when counterparts have been signed by each party and delivered to the
other party. In the event any signature page is delivered by facsimile
transmission, the party using such means of delivery shall cause additional
original executed signature pages to be delivered to the other parties.

         (e) The headings in this Agreement are for convenience of reference and
shall not form a part of, or affect the interpretation of, this Agreement.

         (f) This Agreement shall be governed by and construed in accordance
with the laws of the State of Delaware applicable to contracts made and to be
performed in that state. The parties hereto irrevocably consent to the
jurisdiction of the United States federal courts and state courts located in the
County of New Castle in the State of Delaware, in any suit or proceeding based
on or arising under this Agreement and irrevocably agree that all claims in
respect of such suit or proceeding may be determined in such courts. The parties
hereto irrevocably waive the defense of an inconvenient forum to the maintenance
of such suit or proceeding. The parties hereto further agree that service of
process upon the parties hereto mailed by first class mail shall be deemed in
every respect effective service of process upon each such party in any such suit
or proceeding. Nothing herein shall affect either party's right to serve process
in any other manner permitted by law. The parties hereto agree that a final
non-appealable judgment in any such suit or proceeding shall be conclusive and
may be enforced in other jurisdictions by suit on such judgment or in any other
lawful manner.

         (g) Whenever the consent or approval of Holders of a specified
percentage of Registrable Securities is required hereunder, Registrable
Securities held by the Company or its affiliates (as such term is defined in
Rule 405 under the Securities Act) shall not be counted in determining whether
such consent or approval was given by the Holders of such required percentage.

         (h) Holders of Registrable Securities are intended third party
beneficiaries of the agreements made hereunder between the Company and Licensors
and shall have the right to enforce this Agreement to the extent they deem such
enforcement necessary or advisable to protect their rights hereunder.

         (i) This Agreement, together with the License Agreement and the other
agreements among the parties of even date herewith or therewith, is intended by
the parties as a final expression of their agreement and intended to be a
complete and exclusive statement of the agreement and understanding of the
parties hereto in respect of the subject matter contained herein. There are no
restrictions, promises, warranties or undertakings, other than those set forth
or referred to herein with respect to the registration rights granted by the
Company with respect to the Registrable Securities. This Agreement supersedes
all prior agreements and understandings among the parties with respect to such
subject matter.

<PAGE>

         (j) The Company agrees that during the time period beginning on the
dated hereof and continuing until the Company has satisfied its obligations
hereunder or until such obligations have expired, the Company will not enter
into any agreement related to the registration of its securities which is
inconsistent with the rights granted to the Holders pursuant to this Agreement.
The rights granted to Licensors pursuant to this Agreement do not conflict with
any other agreements to which the Company is a party.

         IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed as of the date first above written.

LASERSIGHT INCORPORATED                     LICENSORS

By: /s/Michael R. Farris                     /s/Luis A. Ruiz
   ------------------------                 ----------------------------
   Michael R. Farris                        Luis A. Ruiz, M.D.
   President and CEO
                                             /s/Sergio Lenchig
                                            ----------------------------
                                            Sergio LenchigEXHIBIT 10.58

                                 $10,000,000.00

                           LOAN AND SECURITY AGREEMENT
                           ---------------------------

                                  by and among

                             LASERSIGHT INCORPORATED

                          LASERSIGHT TECHNOLOGIES, INC.

                         LASERSIGHT CENTERS INCORPORATED

                            LASERSIGHT PATENTS, INC.

                           PHOTOMED ACQUISITION, INC.

                                    MRF, INC.

                                L.S. EXPORT, LTD.

                                 LST LASER, S.A.

                             LASERSIGHT EUROPE GMBH

                           (collectively, "Borrower")

                                       and

                         HELLER HEALTHCARE FINANCE, INC.

                                   ("Lender")

                                 March 12, 2001

<PAGE>

                           LOAN AND SECURITY AGREEMENT
                           ---------------------------

         THIS LOAN AND SECURITY  AGREEMENT (the  "Agreement")  is made as of
March 12, 2001, by and among  LASERSIGHT  INCORPORATED,  a Delaware corporation,
LASERSIGHT TECHNOLOGIES, INC., a Delaware corporation,  LASERSIGHT CENTERS
INCORPORATED, a Delaware corporation, LASERSIGHT  PATENTS,  INC.,  a Delaware
corporation,  PHOTOMED  ACQUISITION,  INC.,  a Delaware  corporation,  MRF,
INC.,  a Missouri corporation,  L.S. EXPORT,  LTD., a company formed under the
laws of the U.S. Virgin Islands,  LST LASER,  S.A., a company formed under the
laws of Costa Rica, and LASERSIGHT EUROPE GMBH, a company formed under the laws
of Germany (collectively,  "Borrower"),  and HELLER HEALTHCARE FINANCE, INC., a
Delaware corporation ("Lender").

                                    RECITALS
                                    --------

         WHEREAS, Borrower desires to establish certain financing arrangements
with and borrow funds from Lender, and Lender is willing to establish such
arrangements for and make loans and extensions of credit to Borrower, on the
terms and conditions set forth below.

         WHEREAS, the parties desire to define the terms and conditions of their
relationship and to reduce their agreements to writing.

         NOW, THEREFORE, in consideration of the promises and covenants
contained in this Agreement, and for other consideration, the receipt and
sufficiency of which are acknowledged, the parties agree as follows:

                                    ARTICLE I

                                   DEFINITIONS
                                   -----------

         As used in this Agreement, unless otherwise specified, all references
to "Sections" shall be deemed to refer to Sections of this Agreement, and the
following terms shall have the meanings set forth below:

         Section 1.1       Account. "Account" means any right to payment for
                           --------
goods sold or leased or services rendered, whether or not evidenced by an
instrument or chattel paper, and whether or not earned by performance,
including, without limitation, the right to payment of management fees.

         Section 1.2.      Account Debtor.  "Account Debtor" means any Person
                           --------------
obligated on any Account of Borrower.

<PAGE>

         Section 1.3.      Affiliate. "Affiliate" means, with respect to a
                           ---------
specified Person, any Person directly or indirectly controlling, controlled by,
or under common control with the specified Person, including without limitation
their stockholders and any Affiliates thereof. A Person shall be deemed to
control a corporation or other entity if the Person possesses, directly or
indirectly, the power to direct or cause the direction of the management and
business of the corporation or other entity, whether through the ownership of
voting securities, by contract, or otherwise. Notwithstanding the foregoing, the
term "Affiliate" shall not include any of the stockholders of LaserSight
Incorporated or any Person directly or indirectly controlling, controlled by, or
under common control with any stockholder of LaserSight Incorporated.

         Section 1.4.      Agreement.  "Agreement"  means this Loan and Security
                           ---------
Agreement,  as it may be amended or supplemented from time to time.

         Section 1.5.      Base Rate.  "Base Rate" means a rate of interest
                           ---------
equal to one and one quarters  percent  (1.25%)  above the "Prime Rate of
Interest".

         Section 1.6.      Borrowed Money. "Borrowed Money" means any obligation
                           --------------
to repay money, any indebtedness evidenced by notes, bonds, debentures or
similar obligations, any obligation under a conditional sale or other title
retention agreement and the net aggregate rentals under any lease which under
GAAP would be capitalized on the books of Borrower or which is the substantial
equivalent of the financing of the property so leased.

         Section 1.7.      Borrower.  "Borrower" has the meaning set forth in
                           --------
the Preamble.
         Section 1.8.      Borrowing Base.  "Borrowing Base" has the meaning set
                           ---------------
forth in Section 2.1(d).

         Section 1.9.      Business Day.  "Business  Day" means any day on which
                           ------------
financial  institutions  are open for business in the State of Maryland,
excluding Saturdays and Sundays.

         Section 1.10.     Closing; Closing Date.  "Closing" and "Closing Date"
                           ---------------------
have the meanings set forth in Section 5.3.

         Section 1.11.     Collateral.  "Collateral" has the meaning set forth
                           ----------
in Section 3.1.

         Section 1.12.     Commitment Fee.  "Commitment Fee" has the meaning set
                           --------------
forth in Section 2.4(a).

         Section 1.13.     Concentration Account.  "Concentration Account" has
                           ---------------------
the meaning set forth in Section 2.3.

         Section 1.14.     Controlled Group.  "Controlled  Group" means all
                           ----------------
businesses that would be treated as a single employer under Section 4001(b) of
ERISA.

<PAGE>

         Section 1.15.     INTENTIONALLY LEFT BLANK.
                           ------------------------

         Section 1.16.     Default Rate.    "Default  Rate"  means a rate  per
                           ------------
annum  equal  to  five  percent  (5%)  above  the  then applicable Base Rate.

         Section 1.17.     ERISA.  "ERISA" has the meaning set forth in Section
                           -----
4.12.
         Section 1.18.     Event of Default.  "Event of Default" and "Events of
                           ----------------
Default" have the meanings set forth in Section 8.1.

         Section 1.19.     GAAP.  "GAAP" means generally accepted accounting
                           ----
principles applied in a consistent manner.

         Section 1.20.     Governmental Authority. "Governmental Authority"
                           ----------------------
means and includes any federal, state, District of Columbia, county, municipal,
or other government and any department, commission, board, bureau, agency or
instrumentality thereof, whether domestic or foreign.

         Section 1.21.     Hazardous Material. "Hazardous Material" means any
                           ------------------
substances defined or designated as hazardous or toxic waste, hazardous or toxic
material, hazardous or toxic substance, or similar term, by any environmental
statute, rule or regulation or any Governmental Authority applicable to Borrower
or its business, operations or assets.

         Section 1.22.     Highest  Lawful  Rate.  "Highest  Lawful  Rate"
                           ---------------------
means the maximum  lawful  rate of interest  referred to in Section 2.7 that may
accrue pursuant to this Agreement.

         Section 1.23.     INTENTIONALLY LEFT BLANK.
                           ------------------------

         Section 1.24.     Lender.  "Lender" has the meaning set forth in the
                           ------
Preamble.

         Section 1.25.     Loan.  "Loan" has the meaning set forth in Section
                           ----
2.1(a).

         Section 1.26.     Loan Documents. "Loan Documents" means and includes
                           --------------
this Agreement, the Note, the Certificate of Validity, and each and every other
document now or hereafter delivered in connection with this Agreement, as any of
them may be amended, modified, or supplemented from time to time.

         Section 1.27.     Loan Management Fee.  "Loan Management Fee" has the
                           -------------------
meaning set forth in Section 2.4(b).

         Section 1.28.     Lockbox.  "Lockbox" has the meaning set forth in
                           -------
Section 2.3.

         Section 1.28a.    Lockbox  Account.  "Lockbox  Account"  means an
                           ----------------
account maintained by Borrower at the Lockbox Bank into which all collections of
Accounts are paid directly.

<PAGE>
         Section 1.29.     Lockbox Bank.  "Lockbox Bank" has the meaning set
                           ------------
forth in Section 2.3.

         Section 1.30.     Maximum Loan Amount.  "Maximum Loan Amount" has the
                           -------------------
meaning set forth in Section 2.1(a).

         Section 1.31.     INTENTIONALLY LEFT BLANK.
                           ------------------------

         Section 1.32.     INTENTIONALLY LEFT BLANK.
                           -----------------------

         Section 1.33.     Note.  "Note" has the meaning set forth in Section
                           ----
2.1(c).

         Section 1.34.     Obligations.  "Obligations" has the meaning set forth
                           -----------
3.1.

         Section 1.35.     INTENTIONALLY LEFT BLANK.
                           ------------------------

         Section 1.36.     Permitted  Liens.  "Permitted  Liens" means: (a)
                           -----------------
deposits or pledges to secure  obligations  under workmen's compensation,
social  security or similar  laws, or under  unemployment  insurance;  (b)
deposits or pledges to secure bids,  tenders, contracts  (other  than  contracts
for the  payment of  money),  leases,  statutory  obligations,  surety  and
appeal  bonds and other obligations of like nature arising in the ordinary
course of business;  (c) mechanic's,  workmen's,  materialmen's  or other like
liens arising in the ordinary  course of business with respect to obligations
which are not due, or which are being  contested in good faith by  appropriate
proceedings  which suspend the collection  thereof and in respect of which
adequate  reserves have been made (provided that such  proceedings  do not, in
Lender's  sole  discretion,  involve any  substantial  risk of the sale,  loss
or forfeiture of such property or assets or any interest  therein);  (d) liens
and encumbrances in favor of Lender; (e) taxes set forth on Borrower's balance
sheet which are properly  accrued but not yet payable;  (f) liens on equipment
of Borrower to secure  Borrowed  Money  incurred for the sole purpose of
financing the purchase price of the equipment subject to such lien (i.e.,
purchase money security interests);  and (g) the liens set forth on Schedule
1.36.

         Section 1.37.     Person. "Person" means an individual,  partnership,
                           ------
corporation, trust, joint venture, joint stock company, limited liability
company, association, unincorporated organization, Governmental Authority, or
any other entity.

         Section 1.38.     Plan.  "Plan" has the meaning set forth in Section
                           ----
4.12.
         Section 1.39.     Premises.  "Premises" has the meaning set forth in
                           --------
Section 4.14.

         Section 1.40.     Prime Rate of Interest.  "Prime Rate of Interest"
                           ----------------------
means that rate of interest  designated as such by Citibank, N.A., or any
successor thereto, as the same may from time to time fluctuate.

<PAGE>

         Section 1.41.     Prohibited Transaction. "Prohibited Transaction"
                           ----------------------
means a "prohibited transaction" within the meaning of Section 406 of ERISA or
Section 4975(c)(1) of the Internal Revenue Code that is not exempt under Section
407 or Section 408 of ERISA or Section 4975(c)(2) or (d) of the Internal Revenue
Code or under a class exemption granted by the U.S. Department of Labor.

         Section 1.42.     Qualified Account. "Qualified Account" means an
                           -----------------
Account of Borrower generated in the ordinary course of Borrower's business from
the sale of goods or rendition of services which Lender, in its commercially
reasonable credit judgment, deems to be a Qualified Account. Without limiting
the generality of the foregoing, no Account shall be a Qualified Account if: (a)
the Account remains unpaid more than one hundred twenty (120) days past the
invoice date or shipment date, as applicable (but in no event more than one
hundred thirty five (135) days after the applicable goods have been delivered or
services have been rendered); provided, that with respect to any Account that
remains unpaid between ninety (90) days and one hundred twenty (120) days past
its invoice date or shipment date, as applicable, such Account shall be eligible
to be a Qualified Account only to the extent that the amount of such Account,
together with all other such Accounts in the aggregate, does not exceed fifteen
percent (15%) of the aggregate amount of all of Borrower's Accounts; (b) the
Account is subject (as a result of a voluntary act or omission by Borrower) to
any material defense, set-off, counterclaim, deduction, discount, credit,
chargeback, freight claim, allowance or adjustment of any kind; (c) any material
part of any goods the sale of which has given rise to the Account has been
returned, rejected, lost, or damaged; (d) if the Account arises from the sale of
goods by Borrower, the sale was not an absolute sale, or the sale was made on
consignment or on approval or on a sale-or-return basis, or the sale was made
subject to any other repurchase or return agreement, or the goods have not been
shipped to the Account Debtor or its designee; (e) if the Account arises from
the performance of services, the services have not been actually been performed
or the services were undertaken in violation of any law; (f) the Account is
subject to a lien other than a Permitted Lien; (g) Borrower knows or should have
known of the bankruptcy, receivership, reorganization, or insolvency of the
Account Debtor; (h) the Account is evidenced by chattel paper or an instrument
of any kind, or has been reduced to judgment; (i) the Account is an Account of
an Account Debtor not having a principal place of business or executive office
within the United States; (j) the Account Debtor is an Affiliate or Subsidiary
of Borrower; (k) subject to the proviso in Section 1.42(a), more than ten
percent (10%) of the aggregate balance of all Accounts owing from the Account
Debtor obligated on the Account are outstanding more than one hundred twenty
(120) days past their invoice date or shipment date, as applicable; (l) fifty
percent (50%) or more of the aggregate unpaid Accounts from any single Account
Debtor are not deemed Qualified Accounts under this Agreement; (m) the total
unpaid Accounts of the Account Debtor exceed twenty percent (20%) of the net
amount of all Qualified Accounts; (n) any material covenant, representation or
warranty contained in the Loan Documents with respect to such Account has been
breached; or (o) the Account fails to meet such other specifications and
requirements which may from time to time be established by Lender in writing to
Borrower.

<PAGE>

         Section 1.43.     Reportable Event.  "Reportable  Event" means a
                           ----------------
"reportable event" as defined in Section 4043(c) of ERISA forwhich the notice
requirements of Section 4043(a) of ERISA are not waived.

         Section 1.44.     Revolving Credit Loan.  "Revolving Credit Loan" has
                           ---------------------
the meaning set forth in Section 2.1(b).

         Section 1.45.     Term.  "Term" has the meaning set forth in Section
                           ----
2.8.

                                   ARTICLE II

                                      LOAN
                                      ----

         Section 2.1.      Terms.
                           -----
                  (a) The maximum aggregate principal amount of credit extended
by Lender to Borrower under this Agreement (the "Loan") that will be outstanding
at any time is Ten Million and No/100 Dollars ($10,000,000.00) (the "Maximum
Loan Amount").

                  (b) The Loan shall be in the nature of a revolving line of
credit, and shall include sums advanced and other credit extended by Lender to
or for the benefit of Borrower from time to time under this Article II (each a
"Revolving Credit Loan") up to the Maximum Loan Amount depending upon the
availability in the Borrowing Base and the requests of Borrower pursuant to the
terms and conditions of Section 2.2. The outstanding principal balance of the
Loan may fluctuate from time to time, to be reduced by repayments made by
Borrower (which may be made without penalty or premium), and to be increased by
future Revolving Credit Loans, advances and other extensions of credit to or for
the benefit of Borrower, and shall be due and payable in full upon the
expiration of the Term. For purposes of this Agreement, any determination as to
whether there is availability within the Borrowing Base for advances or
extensions of credit shall be made by Lender in its commercially reasonable
credit discretion and is final and binding upon Borrower; provided, however,
that any such decision shall be made in a manner consistent with the terms and
conditions of this Agreement.

                  (c) At Closing, Borrower shall execute and deliver to Lender a
promissory note evidencing Borrower's unconditional obligation to repay Lender
for Revolving Credit Loans, advances, and other extensions of credit made under
the Loan, in the form of Exhibit A to this Agreement (as amended, modified,
restated or replaced from time to time, the "Note"), dated the date of this
Agreement, payable to the order of Lender in accordance with the terms thereof.
The Note shall bear interest on the outstanding principal balance of the Note
from the date of the Note until repaid, with interest payable monthly in arrears
on the first Business Day of each month, at a rate per annum (on the basis of
the actual number of days elapsed over a year of 360 days) equal to the Base
Rate, provided that after the occurrence and during the continuance of an Event
of Default such rate shall be equal to the Default Rate. Upon Borrower's failure

<PAGE>

to comply with the terms of this Agreement, once Lender has notified Borrower of
such failure Lender will be entitled, in addition to exercising any other rights
and remedies available to it, to assess a non-compliance fee that shall operate
to increase the Base Rate by two percent (2%) per annum during any period of
non-compliance. Each Revolving Credit Loan, advance and other extension of
credit shall be deemed evidenced by the Note, which is deemed incorporated into
and made a part of this Agreement by this reference.

                  (d) Subject to the terms and conditions of this Agreement,
advances under the Loan shall be made against a borrowing base equal to
eighty-five percent (85%) of Qualified Accounts due and owing from any Account
Debtor (the "Borrowing Base").

 Lender, in its commercially reasonable credit judgment, may further adjust the
Borrowing Base by applying percentages (known as "liquidity factors") to
Qualified Accounts in a manner consistent with Lender's underwriting practices
and procedures. Such liquidity factors may be adjusted by Lender throughout the
Term as warranted by Lender's underwriting practices and procedures in its
commercially reasonable credit judgment; provided that, notwithstanding the
foregoing, Lender agrees that it shall not, other than at the request of
Borrower, adjust the liquidity factor initially applied by Lender with respect
to the initial advance of the Loan made hereunder for a period of ninety (90)
days after the date of this Agreement. The initial liquidity factor to be
applied by Lender shall be communicated to Borrower in writing prior to the
Closing and any changes thereto shall be communicated by Lender to Borrower in
writing.

         Section 2.2.      Loan Administration.  Borrowings under the Loan shall
                           --------------------
be as follows:
                  (a) A request for a Revolving Credit Loan shall be made, or
shall be deemed to be made, in the following manner: (i) Borrower may give
Lender notice of its intention to borrow, in which notice Borrower shall specify
the amount of the proposed borrowing and the proposed borrowing date, not later
than 2:00 p.m. Eastern time one (1) Business Days before the proposed borrowing
date; provided, however, that no such request may be made at a time when there
exists an Event of Default; and (ii) the becoming due of any amount required to
be paid under this Agreement, whether as interest or for any other Obligation,
shall be deemed irrevocably to be a request for a Revolving Credit Loan on the
day following the due date in the amount required to pay such interest or other
Obligation if such was not paid by Borrower on the due date or at the end of any
applicable cure period for such payment.

                  (b) Borrower hereby irrevocably authorizes Lender to disburse
the proceeds of each Revolving Credit Loan requested, or deemed to be requested,
as follows: (i) the proceeds of each Revolving Credit Loan requested under
subsection 2.2(a)(i) shall be disbursed by Lender by wire transfer to such bank
account as may be designated in writing by Borrower from time to time; and (ii)
the proceeds of each Revolving Credit Loan deemed to be requested under
subsection 2.2(a)(ii) shall be disbursed by Lender by way of direct payment of
the relevant interest or other Obligation.

<PAGE>

                  (c) All Revolving Credit Loans, advances and other extensions
of credit to or for the benefit of Borrower shall constitute one general
Obligation of Borrower, and shall be secured by Lender's lien upon all of the
Collateral.

                  (d) Lender shall enter all Revolving Credit Loans as debits to
a loan account in the name of Borrower and shall also record in said loan
account all payments made by Borrower on any Obligations and all proceeds of
Collateral which are indefeasibly paid to Lender, and may record therein, in
accordance with customary accounting practice, other debits and credits,
including interest and all charges and expenses properly chargeable to Borrower.
All collections into the Concentration Account pursuant to Section 2.3 shall be
applied first to fees, costs and expenses due and owing under the Loan
Documents, then to interest due and owing under the Loan Documents, and then to
principal outstanding with respect to Revolving Credit Loans.

                  (e) Lender will account to Borrower monthly with a statement
of Revolving Credit Loans, charges and payments made pursuant to this Agreement,
and such accounting rendered by Lender shall be deemed final, binding and
conclusive upon Borrower, absent manifest error, unless Lender is notified by
Borrower in writing to the contrary within thirty (30) days of the date each
accounting is mailed to Borrower. Such notice shall be deemed an objection to
those items specifically objected to in the notice.

         Section 2.3.      Collections, Disbursements, Borrowing Availability,
                           ---------------------------------------------------
and Lockbox Account.
-------------------
                  (a) Lender shall assume ownership of Borrower's existing
lockbox, and, if necessary, shall open a lockbox account (the "Lockbox" and the
"Lockbox Account", respectively), in each case with The Huntington National Bank
(the "Lockbox Bank"), and Borrower shall execute with Lender and the Lockbox
Bank a Provider Account Agreement in substantially the form attached hereto as
Exhibit B (the "Lockbox Agreement"), together with any other agreements or
documents necessary to effectuate the intent of the parties as set forth in this
Section 2.3 or in the Lockbox Agreement as Lender may require. Borrower shall
ensure that all collections of Accounts are paid directly from Account Debtors
to the Lockbox. Borrower hereby irrevocably makes, constitutes and appoints
Lockbox Bank (and all persons designated by Lockbox Bank for such purpose) as
Borrower's true and lawful attorney and agent-in-fact to endorse Borrower's name
on all checks, items of payment or other cash items that are acceptable for
collection through the Federal Reserve System (collectively, "Checks") payable
to LaserSight Incorporated, LaserSight Technologies, Inc., LaserSight Patents,
Inc., Photomed Acquisition, Inc., MRF, Inc. (a/k/a The Farris Group), L.S.
Export, Ltd., LST Laser, S.A., LaserSight Europe GmbH or LS Japan Company, Ltd.
(or any reasonable variation of such names) with the endorsement "Credit to the
account of Heller Healthcare Finance, Inc. XXXXXXXXXXXX". Borrower agrees not to
change the foregoing irrevocable instructions to the Lockbox Bank without the
prior written consent of Lender. Notwithstanding anything in the Lockbox
Agreement to the contrary, Borrower agrees that it shall be liable for any fees
and charges in effect from time to time and charged by the Lockbox Bank in

<PAGE>

connection with the Lockbox and the Lockbox Account, and that Lender shall have
no liability therefor. Borrower further acknowledges and agrees that, to the
extent such fees and charges are not paid by Borrower directly but are satisfied
using collections in the Lockbox Account, if applicable, such fees and charges
shall be deemed to be Revolving Credit Loans made by Lender hereunder and, to
the extent that the payment of such fees or charges by Borrower as provided
herein results in any overadvance under this Agreement, Borrower agrees to
immediately (upon notice) repay to Lender the amount of such overadvance. It is
understood that Lender's actions pursuant to this Section 2.3 are provided as a
convenience to Borrower and, in consideration thereof, Borrower agrees to
indemnify and hold Lender harmless from any and all liabilities, claims, losses
and demands whatsoever, including reasonable attorney's fees and expenses,
arising from or relating to Lender's or the Lockbox Bank's actions pursuant to
this Section 2.3.

                  (b) Borrower agrees that all collections paid to the Lockbox
and deposited by Lender into the Lockbox Account under the Lockbox Agreement
will be immediately transferred by Lender into a depository account maintained
by Lender at Bank One, N.A., or such other financial institution as determined
by Lender in its sole discretion, by written notice to Borrowers and the Lockbox
Bank (the "Concentration Account"). Lender shall apply, on a daily basis, all
funds transferred into the Concentration Account pursuant to this Section 2.3 to
reduce the outstanding indebtedness under the Loan (in accordance with Section
2.2(d)), and all future Revolving Credit Loans, advances and other extensions of
credit to be made by Lender under the conditions set forth in this Article II.
To the extent that any collections of Accounts or proceeds of other Collateral
are not sent directly to the Lockbox but are received by Borrower, such
collections shall be held in trust for the benefit of Lender and immediately
remitted, in the form received, to the Lockbox Bank for transfer to the
Concentration Account immediately upon receipt by Borrower.

                  (c) Borrower acknowledges and agrees that its compliance with
the terms of this Section 2.3 is essential, and that Lender will suffer
immediate and irreparable injury and have no adequate remedy at law, if
Borrower, through its acts or omissions, causes, directs or encourages Account
Debtors to send payments other than to the Lockbox, or if Borrower fails to
immediately deposit collections of Accounts or proceeds of other Collateral in
the Lockbox Account as herein required. Upon Borrower's failure to comply with
the terms of this Section 2.3, Lender will be entitled, in addition to
exercising any other rights and remedies available to it, to assess a
non-compliance fee which shall operate to increase the Base Rate by two percent
(2%) per annum during any period of non-compliance. Lender shall be entitled to
assess such fee whether or not an Event of Default is declared or otherwise
occurs. All funds transferred from the Concentration Account for application to
Borrower's indebtedness to Lender shall be applied to reduce the Loan balance,
but for purposes of calculating interest shall be subject to a three (3)
Business Day clearance period. If as the result of collections of Accounts
pursuant to the terms and conditions of this Section 2.3 a credit balance exists
with respect to the Concentration Account, such credit balance shall not accrue
interest in favor of Borrower, but shall be available to Borrower at any time or
times for so long as no Event of Default, and no event or circumstance which,
with notice or the passage of time (or both), would constitute an Event of
Default, exists.

<PAGE>

         Section 2.4.      Fees.
                           ----
                  (a) Upon execution of this Agreement, Borrower shall
unconditionally pay to Lender a commitment fee equal to one percent (1.0%) of
the Maximum Loan Amount (the "Commitment Fee").

                  (b) For so long as the Loan is available to Borrower, Borrower
unconditionally shall pay to Lender a monthly loan management fee (the "Loan
Management Fee") equal to one-twelfth of one percent (0.83%) of the average
amount of the outstanding principal balance of the Revolving Credit Loans during
the preceding month. The Loan Management Fee shall be payable monthly in arrears
on the first day of each successive calendar month.

                  (c) Borrower shall pay to Lender all reasonable out-of-pocket
audit and appraisal fees in connection with audits and appraisals of Borrower's
books and records and such other matters as Lender shall deem appropriate, which
shall be due and payable on the first Business Day of the month following the
date of issuance by Lender of a request for payment thereof to Borrower. Lender
acknowledges that it previously received, prior to the date hereof, a payment in
the amount of Fifteen Thousand and No/100 Dollars ($15,000.00) from Borrower,
which has been and shall be applied as a credit against amounts required to be
paid by Borrower to Lender pursuant to this Section 2.4(c).

                  (d) Borrower shall pay to Lender, on demand, any and all fees,
costs or expenses which Lender or any participant pays to a bank or other
similar institution (including, without limitation, any fees paid by Lender to
any participant) arising out of or in connection with (i) the forwarding to
Borrower or any other Person on behalf of Borrower, by Lender, of proceeds of
Revolving Credit Loans made by Lender to Borrower pursuant to this Agreement,
and (ii) the depositing for collection, by Lender or any participant, of any
check or item of payment received or delivered to Lender or any participant on
account of Obligations.

         Section 2.5.      Payments. Principal payable on account of Revolving
                           --------
Credit Loans shall be payable by Borrower to Lender immediately upon the
earliest of (a) the receipt by Borrower or Lender of any payments on or proceeds
from any of the Collateral, to the extent of such proceeds, (b) the occurrence
of an Event of Default if the Loan and the maturity of the payment of the
Obligations are accelerated, or (c) the termination of this Agreement pursuant
to Section 2.8 of this Agreement; provided, however, that if any advance made by
Lender in excess of the Borrowing Base shall exist at any time, Borrower shall,
immediately upon demand, repay such overadvance. Interest accrued on the
Revolving Credit Loans shall be due on the earliest of (x) the first Business
Day of each month (for the immediately preceding month), computed on the last
calendar day of the preceding month, (y) the occurrence of an Event of Default
if the Loan and the maturity of the payment of the Obligations are accelerated,
or (z) the termination of this Agreement pursuant to Section 2.8. Except to the
extent otherwise set forth in this Agreement, all payments of principal and of

<PAGE>

interest on the Loan, all other charges and any other obligations of Borrower
under this Agreement, shall be made to Lender to the Concentration Account, in
immediately available funds.

         Section 2.6.      Use of Proceeds. The proceeds of Lender's advances
                           ---------------
under the Loan shall be used solely for working capital and for other costs of
Borrower arising in the ordinary course of Borrower's business.

         Section 2.7.      Interest Rate Limitation. The parties intend to
                           ------------------------
conform strictly to the applicable usury laws in effect from time to time during
the term of the Loan. Accordingly, if any transaction contemplated by this
Agreement would be usurious under such laws, then notwithstanding any other
provision of this Agreement: (a) the aggregate of all interest that is
contracted for, charged, or received under this Agreement or under any other
Loan Document shall not exceed the maximum amount of interest allowed by
applicable law (the "Highest Lawful Rate"), and any excess shall be promptly
credited to Borrower by Lender (or, to the extent that such consideration shall
have been paid, such excess shall be promptly refunded to Borrower by Lender);
(b) neither Borrower nor any other Person now or hereafter liable under this
Agreement shall be obligated to pay the amount of such interest to the extent
that it is in excess of the Highest Lawful Rate; and (c) the effective rate of
interest shall be reduced to the Highest Lawful Rate. All sums paid, or agreed
to be paid, to Lender for the use, forbearance, and detention of the debt of
Borrower to Lender shall, to the extent permitted by applicable law, be
allocated throughout the full term of the Note until payment is made in full so
that the actual rate of interest does not exceed the Highest Lawful Rate in
effect at any particular time during the full term thereof. If at any time the
rate of interest under the Note exceeds the Highest Lawful Rate, the rate of
interest to accrue pursuant to this Agreement shall be limited, notwithstanding
anything to the contrary in this Agreement, to the Highest Lawful Rate, but any
subsequent reductions in the Base Rate shall not reduce the interest to accrue
pursuant to this Agreement below the Highest Lawful Rate until the total amount
of interest accrued equals the amount of interest that would have accrued if a
varying rate per annum equal to the interest rate under the Note had at all
times been in effect. If the total amount of interest paid or accrued pursuant
to this Agreement under the foregoing provisions is less than the total amount
of interest that would have accrued if a varying rate per annum equal to the
interest rate under the Note had been in effect, then Borrower agrees to pay to
Lender an amount equal to the difference between (x) the lesser of (A) the
amount of interest that would have accrued if the Highest Lawful Rate had at all
times been in effect, or (B) the amount of interest that would have accrued if a
varying rate per annum equal to the interest rate under the Note had at all
times been in effect, and (y) the amount of interest accrued in accordance with
the other provisions of this Agreement.

         Section 2.8.      Term.
                           ----
                  (a) Subject to Lender's right to cease making Revolving Credit
Loans to Borrower upon or after any Event of Default, this Agreement shall be in
effect for a period of two (2) years from the Closing Date, unless terminated as
provided in this Section 2.8 (the "Term"), and this Agreement shall be renewed

<PAGE>

for one-year periods thereafter upon the mutual written agreement of the
parties.

                  (b) Notwithstanding anything in this Agreement to the
contrary, Lender may terminate this Agreement without notice upon or after the
occurrence of an Event of Default.

                  (c) Upon at least thirty (30) days prior written notice to
Lender (the "Termination Notice Period"), Borrower may terminate this Agreement;
provided however, at the effective date of any termination, Borrower shall pay
to Lender (in addition to the then outstanding principal, accrued interest and
other Obligations owing under the terms of this Agreement and any other Loan
Documents) as liquidated damages and not as a penalty, an amount equal to (i)
three percent (3%) of the Maximum Loan Amount, if the termination is on or prior
to the first anniversary of the date of this Agreement, and (ii) two percent
(2%) of the Maximum Loan Amount, if the termination is after the first
anniversary of the date of this Agreement.

                  (d) All of the Obligations shall be immediately due and
payable upon the termination date stated in any notice of termination of this
Agreement (the "Termination Date"); provided that, notwithstanding anything in
Section 2.8(c) to the contrary, the Termination Date shall be effective no
earlier than the first Business Day of the month following the expiration of the
Termination Notice Period. All undertakings, agreements, covenants, warranties,
and representations of Borrower contained in the Loan Documents shall survive
any such termination and Lender shall retain its liens in the Collateral and all
of its rights and remedies under the Loan Documents notwithstanding such
termination until Borrower has paid the Obligations to Lender, in full, in
immediately available funds.

                  (e) Notwithstanding any provision of this Agreement which
makes reference to the continuance of an Event of Default, nothing in this
Agreement shall be construed to permit Borrower to cure an Event of Default
following the lapse of the applicable cure period, and Borrower shall have no
such right in any instance unless specifically granted in writing by Lender.

         Section 2.9.      Joint and Several Liability; Binding Obligations.
                           ------------------------------------------------
Each entity constituting Borrower shall be jointly and severally liable for all
of the obligations of Borrower under the Note and this Agreement. Each Borrower,
individually, expressly understands, agrees and acknowledges, that the loan
would not be made available on the terms herein in the absence of the collective
credit of all of the Borrowers, the joint and several liability of all
Borrowers, and the cross collateralization of the collateral of all Borrowers.
Accordingly, each Borrower, individually acknowledges that the benefit to each
of the participants in the facility as a whole constitutes reasonably equivalent
value, regardless of the amount of the loan actually borrowed by, advanced to,
or the amount of collateral provided by, any individual Borrower. In addition,
each entity comprising Borrower hereby acknowledges and agrees that all of the
representations, warranties, covenants, obligations, conditions, agreements and
other terms contained in this Agreement shall be applicable to and shall be

<PAGE>

binding upon each entity comprising Borrower, and shall be binding upon all such
entities when taken together.

                                   ARTICLE III

                                   COLLATERAL
                                   ----------

         Section 3.1.      Generally. As security for the payment of all
                           ---------
liabilities of Borrower to Lender, including without limitation: (a)
indebtedness evidenced under the Note, repayment of Revolving Credit Loans,
advances and other extensions of credit, all fees and charges owing by Borrower,
(including without limitation the Termination Fee) and all other liabilities and
obligations of every kind or nature whatsoever of Borrower to Lender, whether
now existing or hereafter incurred, joint or several, matured or unmatured,
direct or indirect, primary or secondary, related or unrelated, due or to become
due, including but not limited to any extensions, modifications, substitutions,
increases and renewals thereof, (b) the payment of all amounts advanced by
Lender to preserve, protect, defend, and enforce its rights under this Agreement
and in the following property in accordance with the terms of this Agreement,
and (c) the payment of all expenses incurred by Lender in connection therewith
(collectively, the "Obligations"), and as further security for the payment and
performance of the obligations of Borrower under any and all loan and security
agreements, secured bridge or term notes or other loan documents evidencing
indebtedness of Borrower or any of its Affiliates to Lender or any of its
Affiliates, including without limitation the Secured Term Note in the aggregate
principal amount of Three Million and No/100 Dollars ($3,000,000.00) dated of
even date herewith in favor of Lender (collectively, the "Affiliated Loan
Documents") (all of the foregoing, collectively, the "Obligations"), Borrower
hereby assigns and grants to Lender a continuing first priority lien on and
security interest in, upon, and to the following property (the "Collateral"):

                  (a) All of Borrower's now-owned and hereafter acquired or
arising Accounts, accounts receivable and rights to payment of every kind and
description, and all of Borrower's contract rights, chattel paper, documents and
instruments with respect thereto, and all of Borrower's rights, remedies,
security and liens, in, to and in respect of the Accounts, including, without
limitation, rights of stoppage in transit, replevin, repossession and
reclamation and other rights and remedies of an unpaid vendor, lienor or secured
party, guaranties or other contracts of suretyship with respect to the Accounts,
deposits or other security for the obligation of any Account Debtor, and credit
and other insurance;

                  (b) All Borrower's money, securities and other property and
the proceeds thereof, including but not limited to any money, securities or
other property from or for Borrower that are now or hereafter held or received
by, in transit to, in possession of, or under the control of Lender or a bailee
or Affiliate of Lender, whether for safekeeping, pledge, custody, transmission,
collection or otherwise, and all of Borrower's deposit accounts and any
instruments evidencing any deposits into any deposit accounts, and all of
Borrower's balances, sums and credits, in each case above whether or not with
Lender and at any time existing;

<PAGE>

                  (c) All of Borrower's right, title and interest in, to and in
respect of all goods relating to, or which by sale have resulted in, Accounts,
including, without limitation, all goods described in invoices or other
documents or instruments with respect to, or otherwise representing or
evidencing, any Account, and all returned, reclaimed or repossessed goods;

                  (d) All of  Borrower's  now owned or hereafter  acquired
deposit  accounts into which  Accounts are  deposited, including the Lockbox
Account;

                  (e) All of Borrower's now owned and hereafter acquired or
arising general intangibles and other property of every kind and description
with respect to, evidencing or relating to its Accounts, accounts receivable and
other rights to payment, including, but not limited to, all existing and future
customer lists, choses in action, claims, books, records, ledger cards,
contracts, licenses, formulae, tax and other types of refunds, returned and
unearned insurance premiums, rights and claims under insurance policies, and
computer programs, information, software, records, and data, as the same relates
to the Accounts;

                  (f) All of Borrower's other general intangibles (including,
without limitation, any proceeds from insurance policies after payment of prior
interests), patents, unpatented inventions, trade secrets, copyrights, contract
rights, goodwill, literary rights, rights to performance, rights under licenses,
choses-in-action, claims, information contained in computer media (such as data
bases, source and object codes, and information therein), things in action,
trademarks and trademarks applied for (together with the goodwill associated
therewith) and derivatives thereof, trade names, including the right to make,
use, and vend goods utilizing any of the foregoing, and permits, licenses,
certifications, authorizations and approvals, and the rights of Borrower
thereunder, issued by any governmental, regulatory, or private authority,
agency, or entity whether now owned or hereafter acquired, together with all
cash and non-cash proceeds and products thereof, including but not limited to
any royalty payments received by or owed to Borrower or any of Borrower's rights
to payment pursuant to that Agreement, dated January 1, 1992, between Visx,
Incorporated and International Business Machines Corporation (as predecessor in
interest to Borrower) related to U.S. Patent No. 4,784,135 and any other
licensing or other similar agreements relating to any patents or other
intellectual property owned by, licensed by or licensed to Borrower;

                  (g) All of Borrower's now owned or hereafter acquired
inventory of every description which is held by Borrower for sale or lease or is
furnished by Borrower under any contract of service or is held by Borrower as
raw materials, work in process or materials used or consumed in a business,
wherever located, and as the same may now and hereafter from time to time be
constituted, together with all cash and non-cash proceeds and products thereof;
provided, that, notwithstanding the foregoing, so long as at the time of any
request by Borrower described below (a) the Secured Term Note has been repaid in
full, and (b) there is no Event of Default that has occurred or is continuing
hereunder, at Borrower's request, Lender agrees to release its security interest
in any and all inventory (not including, however, any cash or non-cash proceeds
thereof to the extent such proceeds constitute Accounts (the "Inventory
Proceeds"), in which Lender shall continue to retain a first priority lien and
security interest hereunder) for which Borrower is able to obtain financing from

<PAGE>

any third party; further provided that the foregoing agreement by Lender is
subject to Lender's ability to obtain from such third party a subordination or
other similar agreement with respect to the Inventory Proceeds that is
satisfactory to Lender in all respects as determined by Lender in its reasonable
judgment

                  (h) All of Borrower's now owned or hereafter acquired
machinery, equipment, computer equipment, tools, tooling, furniture, fixtures,
goods, supplies, materials, work in process, whether now owned or hereafter
acquired, together with all additions, parts, fittings, accessories, special
tools, attachments, and accessions now and hereafter affixed thereto and/or used
in connection therewith, all replacements thereof and substitutions therefor,
and all cash and non-cash proceeds and products thereof; and

                  (i)      The proceeds (including, without limitation,
insurance proceeds) of all of the foregoing.

         Section 3.2.      Lien Documents. At Closing and thereafter as Lender
                           --------------
deems necessary in its sole discretion, Borrower shall execute and deliver to
Lender, or have executed and delivered (all in form and substance satisfactory
to Lender in its sole discretion):

                  (a) UCC-1 Financing Statements pursuant to the Uniform
Commercial Code in effect in the jurisdiction(s) in which Borrower operates,
which Lender may file in any jurisdiction where any Collateral is or may be
located and in any other jurisdiction that Lender deems appropriate; provided
that a carbon, photographic, or other reproduction or other copy of this
Agreement or of a financing statement is sufficient as and may be filed in lieu
of a financing statement; and

                  (b) Any other agreements, documents, instruments, and writings
deemed necessary by Lender or as Lender may otherwise request from time to time
in its sole discretion to evidence, perfect, or protect Lender's lien and
security interest in the Collateral required under this Agreement.

         Section 3.3.      Collateral Administration.
                           -------------------------

                  (a) All Collateral (except deposit accounts, and finished
goods and inventory disposed of or held in the possession of Borrower's
distributors and field service personnel or held on consignment in connection
with clinical trials being conducted by or on Borrower's behalf or utilized in
trade shows, all being in the normal course of Borrower's business) shall at all
times be kept by Borrower at its principal office(s) as set forth on Schedule
4.15 and shall not be moved from such locations without (i) providing prior
written notice to Lender in accordance with Section 6.15, and (ii) obtaining the
prior written consent of Lender, which consent shall not be unreasonably
withheld.

                  (b) Borrower shall keep accurate and complete records of its
Accounts and all payments and collections thereon and shall submit to Lender on
such periodic basis as Lender shall request a sales and collections report for

<PAGE>

the preceding period, in form satisfactory to Lender. In addition, if Qualified
Accounts in an aggregate face amount in excess of $500,000.00 become ineligible
because they fall within one of the specified categories of ineligibility set
forth in the definition of Qualified Accounts or otherwise, Borrower shall
notify Lender of such occurrence within three (3) Business Days following such
occurrence and the Borrowing Base shall thereupon be adjusted to reflect such
occurrence. If requested by Lender on the occurrence of an Event of Default or
any event which with the giving of notice of lapse of time or both would
constitute an Event of Default, Borrower shall execute and deliver to Lender
formal written assignments of all of its Accounts weekly or daily, which shall
include all Accounts that have been created since the date of the last
assignment, together with copies of claims, invoices or other information
related thereto.

                  (c) Whether or not an Event of Default has occurred, any of
Lender's officers, employees or agents shall have the right, at any time or
times hereafter, in the name of Lender or any designee of Lender or Borrower, on
prior notice to Borrower, to verify the validity, amount or any other matter
relating to any Accounts by mail, telephone, telegraph or otherwise. Borrower
shall cooperate fully with Lender in an effort to facilitate and promptly
conclude such verification process.

                  (d) To expedite collection, Borrower shall endeavor in the
first instance to make collection of its Accounts for Lender. Lender retains the
right at all times after the occurrence and during the continuance of an Event
of Default to notify Account Debtors that Accounts have been assigned to Lender
and to collect Accounts directly in its own name and to charge the collection
costs and expenses, including attorneys' fees, to Borrower.

         Section 3.4.      Other Actions. In addition to the foregoing, Borrower
                           -------------
(a) shall direct each Account Debtor to make payments into the Lockbox, and
hereby authorizes Lender, upon Borrower's failure to provide such direction
within ten (10) days after the date of this Agreement (or ten (10) days after
the entity becomes an Account Debtor), to direct such Account Debtors to make
payments into the Lockbox, and (b) shall do anything further that may be
lawfully required by Lender to secure Lender and effectuate the intentions and
objects of this Agreement, including but not limited to the execution and
delivery of lockbox agreements, continuation statements, amendments to financing
statements, and any other documents required under this Agreement. At Lender's
request, Borrower shall also immediately deliver to Lender all items for which
Lender must receive possession to obtain a perfected security interest in the
Collateral. Borrower shall within three (3) Business Days following Lender's
demand, deliver to Lender copies of all notes, certificates, and documents of
title, chattel paper, warehouse receipts, instruments, and any other similar
instruments constituting Collateral; provided that upon the occurrence of an
Event of Default or any event that, with the giving of notice or passage of time
or both, would constitute an Event of Default, Borrower shall, promptly
following Lender's demand, deliver to Lender any requested originals or copies
of all notes, certificates, and documents of title, chattel paper, warehouse
receipts, instruments, and any other similar instruments constituting
Collateral.

<PAGE>

         Section 3.5.      Searches. Before Closing, and thereafter (as and when
                           --------
determined by Lender in its sole discretion), Lender will perform the searches
described in clauses (a) and (b) below against Borrower (the results of which
are to be consistent with Borrower's representations and warranties under this
Agreement), all at Borrower's expense:

                  (a) Uniform Commercial Code searches with the Secretary of
State and local filing offices of each jurisdiction where Borrower maintains its
executive offices, a place of business, or assets; and

                  (b) Judgment, federal tax lien and corporate and partnership
tax lien searches, in each jurisdiction searched under clause (a) above.

         In addition, prior to Closing, at Borrower's expense, Borrower shall
obtain and deliver to Lender good standing certificates showing Borrower to be
in good standing in its state of formation and in each other state in which
failure to so qualify would have a material adverse effect on Borrower.

         Section 3.6.      Power of Attorney. Each of the officers of Lender is
                           -----------------
hereby irrevocably made, constituted and appointed the true and lawful attorney
for Borrower (without requiring any of them to act as such) with full power of
substitution to do the following: (a) endorse the name of Borrower upon any and
all checks, drafts, money orders, and other instruments for the payment of money
that are payable to Borrower or constitute collections on Borrower's Accounts,
in each case that may come into Lender's possession; (b) if Borrower refuses to,
or fails timely to execute and deliver any financing statements, schedules,
assignments, instruments, documents, and statements that Borrower is obligated
to give Lender under this Agreement, execute such documents in the name of
Borrower; and (c) at any time that an Event of Default has occurred and is
continuing or Lender in good faith deems itself insecure, do such other and
further acts and deeds in the name of Borrower that Lender may deem necessary or
desirable to enforce any Account or other Collateral or perfect Lender's
security interest or lien in any Collateral. In addition, if Borrower breaches
its obligation to direct payments of the proceeds of the Collateral to the
Lockbox Account, Lender, as the irrevocably made, constituted and appointed true
and lawful attorney for Borrower pursuant to this paragraph, may, by the
signature or other act of any of Lender's officers (without requiring any of
them to do so), direct any federal, state or private payor or fiscal
intermediary to pay proceeds of the Collateral to Borrower by directing payment
to the Lockbox Account. The appointment of Lender as Borrower's attorney, and
each and every one of Lender's rights and powers related thereto, shall be
revoked and terminated at such time as the Obligations have been fully and
finally paid by Borrower without any further act or action required by Lender or
Borrower.

<PAGE>

                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES
                         ------------------------------

         Each entity comprising Borrower represents and warrants to Lender, and
shall be deemed to represent and warrant on each day on which any Obligations
shall be outstanding under this Agreement, that:

         Section 4.1.      Subsidiaries.  Except as set forth in Schedule 4.1,
                           ------------
Borrower has no  subsidiaries.  LS Japan Company,  Ltd. (i)is not an operating
subsidiary  of Borrower,  (ii) does not hold title to or  possession  of any
assets of Borrower,  and (iii) is not now, nor in the future will it be,
utilized in any manner to carry on Borrower's or any other business.

         Section 4.2.      Organization and Good Standing. Borrower is a
                           ------------------------------
corporation duly organized, validly existing, and in good standing under the
laws of its state of formation, is in good standing as a foreign corporation in
each jurisdiction in which the failure to be so qualified reasonably could be
expected to have a material adverse effect on the Borrower, has the corporate
power and authority to own its assets and transact the business in which it is
engaged, and has obtained all certificates, licenses and qualifications required
under all laws, regulations, ordinances, or orders of public authorities
necessary for the ownership and operation of all of its properties and
transaction of all of its business.

         Section 4.3.      Authority. Borrower has full corporate power and
                           ---------
authority to enter into, execute, and deliver this Agreement and to perform its
obligations under this Agreement, to borrow the Loan, to execute and deliver the
Note, and to incur and perform the obligations provided for in the Loan
Documents, all of which have been duly authorized by all necessary corporate
action. No consent or approval of the shareholders of, or lenders to, Borrower
and no consent, approval, filing or registration with any Governmental Authority
is required as a condition to the validity of the Loan Documents or the
performance by Borrower of its obligations under the Loan Documents.

         Section 4.4.      Binding Agreement. This Agreement and all other Loan
                           -----------------
Documents constitute, and the Note, when issued and delivered pursuant to this
Agreement for value received, will constitute, the valid and legally binding
obligations of Borrower, enforceable against Borrower in accordance with their
respective terms, except to the extent that such enforcement may be limited by
applicable bankruptcy, insolvency and other similar laws affecting creditors
rights generally.

         Section 4.5.      Litigation. Except as disclosed in Schedule 4.5,
                           ----------
there  are no actions, suits, proceedings or investigations pending or to
Borrower's knowledge, threatened against Borrower before any court or arbitrator
or before or by any Governmental Authority which, in any one case or in the
aggregate, if determined adversely to the interests of Borrower, could have a
material adverse effect on the business, properties, condition (financial or
otherwise) or operations, current or prospective, of Borrower, or upon its
ability to perform

<PAGE>

its obligations under the Loan Documents. Borrower is not in default with
respect to any order of any court, arbitrator, or Governmental Authority
applicable to Borrower or its properties.

         Section 4.6.      No Conflicts. Except as disclosed in Schedule 4.6,
                           ------------
the execution and delivery by Borrower of this Agreement and the other Loan
Documents do not, and the performance of its obligations under the Loan
Documents will not, violate, conflict with, constitute a default under, or
result in the creation of a lien or encumbrance upon the property of Borrower
(other than for the benefit of Lender) under: (a) any provision of Borrower's
articles of incorporation or bylaws, (b) any provision of any law, rule, or
regulation applicable to Borrower, (c) any indenture or other agreement or
instrument to which Borrower is a party or by which Borrower or its property is
bound, or (d) any judgment, order or decree of any court, arbitration tribunal,
or Governmental Authority having jurisdiction over Borrower which is applicable
to Borrower.

         Section 4.7.      Financial Condition. The annual financial statements
                           -------------------
of Borrower as of and for the period ending December 31, 1999 audited by KPMG,
LLP and the unaudited financial statements of Borrower as of and for the period
ending September 30, 2000, certified by the chief financial officer of Borrower,
which have been delivered to Lender, fairly present the financial condition of
Borrower and the results of its operations and changes in financial condition as
of the dates and for the periods referred to, and have been prepared in
accordance with GAAP (except for the unaudited financial statements that are
subject to normal year-end adjustments and will not contain footnotes). There
are no material unrealized or anticipated liabilities, direct or indirect, fixed
or contingent, of Borrower as of the dates of such financial statements which
are not reflected in such financial statements or in the notes to such financial
statements. There has been no adverse change in the business, properties,
condition (financial or otherwise) or operations (current or prospective) of
Borrower since December 31, 2000. Borrower's fiscal year ends on December 31.
The federal tax identification number of each entity comprising Borrower is set
forth on Schedule 4.7.

         Section 4.8.      No Default. Except as disclosed in Schedule 4.8,
                           ----------
Borrower is not in default under or with respect to any obligation in any
respect which could be adverse to its business, operations, property or
financial condition, or which could adversely affect the ability of Borrower to
perform its obligations under the Loan Documents. Except as disclosed in
Schedule 4.8, no Event of Default or event which, with the giving of notice or
lapse of time, or both, could become an Event of Default, has occurred and is
continuing.

         Section 4.9.      Title to Properties. Except as disclosed in Schedule
                           -------------------
4.9, Borrower has good and marketable title to its properties and assets,
including the Collateral and the properties and assets reflected in the
financial statements described in Section 4.7, subject to no lien, mortgage,
pledge, encumbrance or charge of any kind, other than Permitted Liens. Borrower
has not agreed or consented to cause any of its properties or assets whether
owned now or hereafter acquired to be subject in the future (upon the happening
of a contingency or otherwise) to any lien, mortgage, pledge, encumbrance or
charge of any kind other than Permitted Liens.

<PAGE>

         Section 4.10.     Taxes. Borrower has filed, or has obtained extensions
                           -----
for the filing of, all federal, state and other tax returns which are required
to be filed, and has paid all taxes shown as due on those returns and all
assessments, fees and other amounts due as of the date of this Agreement. All
tax liabilities of Borrower were, as of December 31, 2000 and are now,
adequately provided for on Borrower's books. No tax liability has been asserted
by the Internal Revenue Service or other taxing authority against Borrower for
taxes in excess of those already paid.

         Section 4.11.     Securities and Banking Laws and Regulations.
                           -------------------------------------------
                  (a) The use of the proceeds of the Loan and Borrower's
issuance of the Note will not directly or indirectly violate or result in a
violation of the Securities Act of 1933 or the Securities Exchange Act of 1934,
as amended, or any regulations issued pursuant thereto, including without
limitation Regulations U, T or X of the Board of Governors of the Federal
Reserve System. Borrower is not engaged in the business of extending credit for
the purpose of the purchasing or carrying "margin stock" within the meaning of
those regulations. No part of the proceeds of the Loan under this Agreement will
be used to purchase or carry any margin stock or to extend credit to others for
such purpose.

                  (b) Borrower is not an investment company within the meaning
of the Investment Company Act of 1940, as amended, nor is it, directly or
indirectly, controlled by or acting on behalf of any Person which is an
investment company within the meaning of that Act.

         Section 4.12.     ERISA. No employee benefit plan (a "Plan") subject to
                           -----
the Employee Retirement Income Security Act of 1974 ("ERISA") and regulations
issued pursuant to ERISA that is maintained by Borrower or under which Borrower
could have any material liability under ERISA (a) has failed to meet minimum
funding standards established in Section 302 of ERISA, (b) has to Borrower's
knowledge failed to substantially comply with all applicable requirements of
ERISA and of the Internal Revenue Code, including all applicable rulings and
regulations thereunder, or (c) has engaged in or been involved in a prohibited
transaction (as defined in ERISA) under ERISA or under the Internal Revenue
Code. Neither Borrower nor any member of a Controlled Group that includes
Borrower has assumed, or received notice of a claim asserted against Borrower or
another member of the Controlled Group for, withdrawal liability (as defined in
the Multi-Employer Pension Plan Amendments Act of 1980, as amended) with respect
to any multi-employer pension plan. Borrower has timely made when due all
contributions with respect to any multi-employer pension plan in which it
participates and no event has occurred triggering a material claim against
Borrower for withdrawal liability with respect to any multi-employer pension
plan in which Borrower participates.

         Section 4.13.     Compliance with Law. Except as described in Schedule
                           -------------------
4.13, Borrower is not in violation of any statute, rule or regulation of any
Governmental Authority (including, without limitation, any statute, rule or
regulation relating to employment practices or to environmental, occupational
and health standards and controls) where such violation would, individually or
in the aggregate, have a material adverse effect on the Borrower. Borrower has

<PAGE>

obtained all licenses, permits, franchises and other governmental authorizations
necessary for the ownership of its properties and the conduct of its business,
except to the extent that the failure to obtain such licenses, permits,
franchises and authorizations, individually or in the aggregate, would not have
a material adverse effect on the Borrower. Borrower is current with all reports
and documents required to be filed with any state or federal securities
commission or similar Governmental Authority and is in full compliance with all
applicable rules and regulations of such commissions.

         Section 4.14.     Environmental Matters. To Borrower's knowledge, no
                           ---------------------
use, exposure, release, generation, manufacture, storage, treatment,
transportation or disposal of Hazardous Material has occurred or is occurring on
or from any real property on which the Collateral is located or which is owned,
leased or otherwise occupied by Borrower (the "Premises"), or off the Premises
as a result of any action of Borrower, except as described in Schedule 4.14. All
Hazardous Material used, treated, stored, transported to or from, generated or
handled on the Premises, or off the Premises by Borrower, has been disposed of
on or off the Premises by or on behalf of Borrower in a lawful manner. To
Borrower's knowledge, there are no underground storage tanks present on or under
the Premises owned or leased by Borrower. No other environmental, public health
or safety hazards exist with respect to the Premises.

         Section 4.15.     Places of Business. As of the Closing Date, the only
                           ------------------
places of business of Borrower, and the places where it keeps and intends to
keep the Collateral and records concerning the Collateral, are at the addresses
set forth in Schedule 4.15. All locations set forth on Schedule 4.15 are leased
by Borrower, and Schedule 4.15 lists the lessor for each such property.

         Section 4.16.     Intellectual Property. Borrower exclusively owns or
                           ---------------------
possesses a license to all the patents, patent applications, trademarks,
trademark applications, service marks, trade names, copyrights, franchises,
licenses, and rights with respect to the foregoing necessary for the current and
planned future conduct of its business, without, except as described in Schedule
4.16(b), any conflict with the rights of others. A list of all such intellectual
property (indicating the nature of Borrower's interest), as well as all
outstanding franchises and licenses given by or held by Borrower, is attached as
Schedule 4.16(a). Borrower is not in default of any obligation or undertaking
with respect to such intellectual property or rights. Except as described in
Schedule 4.16(b), Borrower is not infringing on any patents, patent
applications, trademarks, trademark applications, service marks, trade names,
copyrights, franchises, licenses, any rights with respect to the foregoing, or
any other intellectual property rights of others and the Borrower is not aware
of any infringement by others of any such rights owned by Borrower.

         Section 4.17.     Stock Ownership. The authorized equity securities of
                           ---------------
each of the entities comprising Borrower is as set forth on Schedule 4.17. All
issued and outstanding equity securities of the Borrower are duly authorized and
validly issued, fully paid, nonassessable, free and clear of all liens other
than those in favor of Lender for the benefit of Lender, and such equity
securities were issued in compliance with all applicable state, federal and
foreign laws concerning the issuance of securities. The identity of the holders

<PAGE>

of equity securities in excess of five percent (5%) of the issued and
outstanding shares of Borrower on a fully diluted basis as of February 28, 2001
and the percentage of their fully-diluted ownership of the equity securities of
Borrower are set forth on Schedule 4.17. No shares of the capital stock or other
equity securities of the Borrower, other than those described above, are issued
and outstanding. Except as provided in Schedule 4.17, there are no preemptive or
other outstanding rights, options, warrants, conversion rights or similar
agreements or understandings for the purchase or acquisition from Borrower of
any equity securities of Borrower.

         Section 4.18.     Material Facts. Neither this Agreement nor any other
                           --------------
Loan Document nor any other agreement, document, certificate, or statement
furnished to Lender by or on behalf of Borrower in connection with the
transactions contemplated by this Agreement contains any untrue statement of
material fact or omits to state a material fact necessary to make the statements
contained in this Agreement or other Loan Document not misleading. There is no
fact known to Borrower that adversely affects or in the future may adversely
affect the business, operations, affairs or financial condition of Borrower, or
any of its properties or assets.

         Section 4.19.     Investments, Guarantees, and Certain Contracts.
                           ----------------------------------------------
Borrower does not own or hold any equity or long-term debt investments in, have
any outstanding advances to, have any outstanding guarantees for the obligations
of, or have any outstanding borrowings from, any Person, except as described on
Schedule 4.19. Borrower is not a party to any contract or agreement, or subject
to any corporate restriction, which adversely affects its business.

         Section 4.20.     Business Interruptions. Within five years before the
                           ----------------------
date of this Agreement, neither the business, property or assets, or operations
of Borrower has been adversely affected in any way by any casualty, strike,
lockout, combination of workers, or order of the United States of America or
other Governmental Authority, directed against Borrower. There are no pending or
threatened labor disputes, strikes, lockouts, or similar occurrences or
grievances against Borrower or its business.

         Section 4.21.     Names. Within five years before the date of this
                           -----
Agreement, Borrower has not conducted business under or used any other name
(whether corporate, partnership or assumed) other than as shown on Schedule
4.21. To Borrower's knowledge, except as set forth on Schedule 4.21, Borrower is
the sole owner of all names listed on that Schedule and any and all business
done and invoices issued in such names are Borrower's sales, business, and
invoices. Each trade name of Borrower represents a division or trading style of
Borrower and not a separate Person or independent Affiliate.

         Section 4.22      Joint Ventures. Borrower is not engaged in any joint
                           --------------
venture or partnership with any other Person, except as set forth on Schedule
4.22.

         Section 4.23      Accounts. Lender may rely, in determining which
                           --------
Accounts are Qualified Accounts, on all statements and representations made by
Borrower with respect to any Account or Accounts. Unless otherwise indicated in
writing to Lender, with respect to each Qualified Account, Borrower represents
that:

<PAGE>

                  (a) The Account is genuine and in all respects what it
purports to be, and is not evidenced by a judgment;

                  (b) The Account arises out of a completed, bona fide sale and
shipment of goods or rendition of services by Borrower in the ordinary course of
its business and in accordance with the terms and conditions of all purchase
orders, contracts or other documents relating thereto and forming a part of the
contract between Borrower and the Account Debtor;

                  (c) The Account is for a liquidated amount maturing as stated
in a duplicate claim or invoice covering such sale or rendition of services, a
copy of which has been furnished or is available to Lender;

                  (d) The Account, and Lender's security interest in such
Account, is not, and will not (by voluntary act or omission by Borrower), be in
the future, subject to any offset, lien, deduction, defense, dispute,
counterclaim or any other adverse condition, and each such Account is absolutely
owing to Borrower and is not contingent in any respect or for any reason;

                  (e) There are no facts, events or occurrences which in any way
impair the validity or enforceability of any Accounts or tend to reduce the
amount payable thereunder from the face amount of the claim or invoice and
statements delivered to Lender with respect thereto;

                  (f) To the best of Borrower's knowledge, (i) the Account
Debtor under the Account had the capacity to contract at the time any contract
or other document giving rise to the Account was executed and (ii) such Account
Debtor is solvent;

                  (g) To the best of Borrower's knowledge, there are no
proceedings or actions which are threatened or pending against any Account
Debtor under the Account which might result in any material adverse change in
such Account Debtor's financial condition or the collectibility of such Account;

                  (h) The Account has been billed and forwarded to the Account
Debtor for payment in accordance with applicable laws and compliance and
conformance with any requisite procedures, requirements and regulations
governing payment by such Account Debtor with respect to such Account; and

                  (i) Borrower has obtained and currently has all licenses,
permits and authorizations  that are necessary in the generation of such
Accounts.

         Section 4.24.     Solvency. Both before and after giving effect to the
                           --------
transactions contemplated by the terms and provisions of this Agreement,
Borrower (taken as a whole) (a) owns property whose fair saleable value is
greater than the amount required to pay all of Borrower's Indebtedness
(including contingent debts), (b) was and is able to pay all of its Indebtedness
as such Indebtedness matures, and (c) had and has capital sufficient to carry on

<PAGE>

its business and transactions and all business and transactions in which it is
about to engage. For purposes of this Agreement, the term "Indebtedness" means,
without duplication (x) all items which in accordance with GAAP would be
included in determining total liabilities as shown on the liability side of a
balance sheet of such Borrower as of the date on which Indebtedness is to be
determined, (y) all obligations of any other person or entity which such
Borrower has guaranteed, and (z) the Obligations.

         Section 4.25.     Year 2000 Compliance. All devices, systems,
                           --------------------
machinery, information technology, computer software and hardware, and other
date sensitive technology (collectively, the "Systems") necessary for Borrower
to carry on its business as currently conducted and as expected to be conducted
in the future are currently functioning in a manner, and with ordinary course
upgrading and maintenance, will continue to function in manner so as to be Year
2000 Compliant. For purposes of these provisions, "Year 2000 Compliant" means
that such Systems are designed to be used before, during and after the Gregorian
calendar year 2000 A.D. and will operate during each such time period without
error related to date data, specifically including any error relating to, or the
product of, date data that represents or refers to different centuries or more
than one century.

                                    ARTICLE V

                        CLOSING AND CONDITIONS OF LENDING
                        ---------------------------------

         Section 5.1.      Conditions Precedent to Agreement. The obligation of
                           ---------------------------------
Lender to enter into and perform this Agreement and to make Revolving Credit
Loans is subject to the following conditions precedent:

                  (a) Lender shall have received two (2) originals of this
Agreement, the Certificate of Validity, and all other Loan Documents required to
be executed and delivered at or before Closing (other than the Note, as to which
Lender shall receive only one original), executed by Borrower and any other
required Persons, as applicable.

                  (b) Lender shall have received all searches and good standing
certificates required by Section 3.5.

                  (c) Borrower shall have complied and shall then be in
compliance with all the terms, covenants and conditions of the Loan Documents.

                  (d) There shall have occurred and be continuing no Event of
Default and no event which, with the giving of notice or the lapse of time, or
both, could constitute such an Event of Default.

                  (e) The representations and warranties contained in Article IV
shall be true and correct.

<PAGE>

                  (f) Lender shall have received an executed Officer's
Certificate, together with all attachments thereto, in a form acceptable to
Lender.

                  (g) Lender shall have received a written opinion of counsel
for Borrower, dated the date of this Agreement, substantially in the form of
Exhibit C.

                  (h) Lender shall have received such financial statements,
reports, certifications, and other operational information required to be
delivered under this Agreement, including without limitation an initial
borrowing base certificate calculating the Borrowing Base.

                  (i) Lender shall have received the Commitment Fee.

                  (j) The Lockbox, Lockbox Account and the Concentration
Account shall have been established.

                  (k) Lender shall have received an estoppel certificate
substantially in the form of Exhibit D from Borrower's landlord or sublandlord,
as the case may be, with respect to the two facilities located in Winter Park,
Florida and the one facility located in Earth City, Missouri.

                  (l) Lender shall have received a certificate of Borrower's
chief financial officer, dated the Closing Date, certifying that all of the
conditions specified in this Section have been fulfilled.

         Section 5.2.      Conditions Precedent to Advances. Notwithstanding any
                           ---------------------------------
other provision of this Agreement, no Loan proceeds, Revolving Credit Loans,
advances or other extensions of credit under the Loan shall be disbursed under
this Agreement unless the following conditions have been satisfied or waived
immediately before such disbursement:

                  (a) The representations and warranties on the part of Borrower
contained in Article IV of this Agreement shall be true and correct in all
respects at and as of the date of disbursement or advance, as though made on and
as of such date (except to the extent that such representations and warranties
expressly relate solely to an earlier date and except that the references in
Section 4.7 to financial statements shall be deemed to be a reference to the
then most recent annual and interim financial statements of Borrower furnished
to Lender pursuant to Section 6.1).

                  (b) No Event of Default or event which, with the giving of
notice of the lapse of time, or both, could become an Event of Default shall
have occurred and be continuing or would result from the making of the
disbursement or advance.

                  (c) No material adverse change in the condition (financial or
otherwise), properties, business, or operations of Borrower shall have occurred
and be continuing with respect to Borrower since the date of this Agreement.

<PAGE>

         Section 5.3.      Closing. Subject to the conditions of this Article V,
                           -------
the Loan shall be made available on the date as is mutually agreed by the
parties (the "Closing Date") at such time as may be mutually agreeable to the
parties upon the execution of this Agreement (the "Closing") at such place as
may be requested by Lender.

         Section 5.4.      Waiver of Rights. By completing the Closing under
                           ----------------
this Agreement, or by making advances under the Loan, Lender does not waive a
breach of any representation or warranty of Borrower under this Agreement or
under any other Loan Document, and all of Lender's claims and rights resulting
from any breach or misrepresentation by Borrower are specifically reserved by
Lender.

                                   ARTICLE VI

                              AFFIRMATIVE COVENANTS
                              ---------------------

         Each entity comprising Borrower covenants and agrees that for so long
as Borrower may borrow under this Agreement and until payment in full of the
Note and satisfaction of all other obligations of Borrower under the Loan
Documents:

         Section 6.1.      Financial Statements and Collateral Reports. Borrower
                           -------------------------------------------
will furnish to Lender (a) a sales and collections report and accounts
receivable aging schedule on a form acceptable to Lender within twenty (20) days
after the end of each calendar month, which shall include, but not be limited
to, a report of sales, credits issued, and collections received; (b) payables
aging schedules within twenty (20) days after the end of each calendar month;
(c) internally prepared monthly consolidated financial statements for Borrower,
certified by the chief financial officer of Borrower, within forty-five (45)
days of the end of each calendar month, accompanied by actual vs. budget
variance reports; (d) to the extent prepared by Borrower, annual projections,
profit and loss statements, balance sheets, and cash flow reports (prepared on a
quarterly basis) for the succeeding fiscal year no later than the last to occur
of (i) thirty (30) days after the commencement of each of Borrower's fiscal
years, or (ii) five (5) Business Days after such statements and reports are
approved by LaserSight Incorporated's board of directors; (e) internally
prepared consolidated annual financial statements for Borrower within
seventy-five (75) days after the end of each of Borrower's fiscal years; (f)
consolidated annual financial statements for Borrower audited by KPMG, LLP, or
another firm of independent public accountants satisfactory to Lender, within
ninety (90) days after the end of each of Borrower's fiscal years; (g) promptly
upon receipt thereof, copies of any reports submitted to Borrower by the
independent accountants in connection with any interim audit of the books of
Borrower and copies of each management control letter provided to Borrower by
independent accountants; (h) as soon as available, copies of all financial
statements and notices provided by Borrower to all of its stockholders; and (i)
such additional information, reports or statements as Lender may from time to
time reasonably request. Annual financial statements shall set forth in
comparative form figures for the corresponding periods in the prior fiscal year.
All financial statements shall include a balance sheet and statement of earnings
and shall be prepared in accordance with GAAP.

<PAGE>
         Section 6.2.      Payments Under this Agreement. Borrower will make all
                           ----------------------------
payments of principal, interest, fees, and all other payments required under
this Agreement and under the Loan, and under any other agreements with Lender to
which Borrower is a party, as and when due.

         Section 6.3.      Existence, Good Standing, and Compliance with Laws.
                           --------------------------------------------------
Borrower will do or cause to be done all things necessary (a) to obtain and keep
in full force and effect all corporate existence, rights, material licenses,
privileges, and franchises of Borrower necessary to the ownership of its
property or the conduct of its business, and comply with all applicable current
and future laws, ordinances, rules, regulations, orders and decrees of any
Governmental Authority having or claiming jurisdiction over Borrower; and (b) to
maintain and protect the properties used or useful in the conduct of the
operations of Borrower, in a prudent manner, including without limitation the
maintenance at all times of such insurance upon its insurable property and
operations as required by law or by Section 6.7. For purposes of this Section
6.3, LS Japan Company, Ltd. will not be considered a "Borrower" and nothing in
this Section 6.3 shall require Borrower to maintain the existence of LS Japan
Company, Ltd.

         Section 6.4.      Legality. The making of the Loan and each
                           --------
disbursement or advance under the Loan shall not be subject to any penalty or
special tax, shall not be prohibited by any governmental order or regulation
applicable to Borrower, and shall not violate any rule or regulation of any
Governmental Authority, and necessary consents, approvals and authorizations of
any Governmental Authority to or of any such disbursement or advance shall have
been obtained.

         Section 6.5.      Lender's Satisfaction. All instruments and legal
                           ---------------------
documents and proceedings in connection with the transactions contemplated by
this Agreement shall be satisfactory in form and substance to Lender and its
counsel, and Lender shall have received all documents, including records of
corporate proceedings and opinions of counsel, which Lender may have requested
in connection therewith.

         Section 6.6.      Taxes and Charges. Borrower will timely file all tax
                           -----------------
reports and pay and discharge all taxes, assessments and governmental charges or
levies imposed upon Borrower, or its income or profits or upon its properties or
any part thereof, before the same shall be in default and before the date on
which penalties attach thereto, as well as all lawful claims for labor,
material, supplies or otherwise which, if unpaid, might become a lien or charge
upon the properties or any part thereof of Borrower; provided, however, that
Borrower shall not be required to pay and discharge or cause to be paid and
discharged any such tax, assessment, charge, levy or claim so long as the
validity or amount thereof shall be contested in good faith and by appropriate
proceedings by Borrower, and Borrower shall have set aside on their books
adequate reserve therefor; and provided further, that such deferment of payment
is permissible only so long as Borrower's title to, and its right to use, the

<PAGE>

Collateral is not adversely affected thereby and Lender's lien and priority on
the Collateral are not adversely affected, altered or impaired thereby.

         Section 6.7.      Insurance. Borrower will carry adequate public
                           ---------
liability and product liability insurance with responsible companies reasonably
satisfactory to Lender in such amounts and against such risks as is customarily
maintained by similar businesses and by owners of similar property in the same
general area.

         Section 6.8.      Information; Visits and Inspections. Borrower shall
                           -----------------------------------
furnish to Lender such information as Lender may, from time to time, request
with respect to the business or financial affairs of Borrower. On advance notice
by Lender and during normal business hours, Borrower shall permit any officer,
employee, agent or representative of Lender to visit and inspect any of the
properties of Borrower, to inspect, audit and make copies of or prepare extracts
from Borrower's minute books, books of account and other records, including
management letters prepared by Borrower's auditors, of Borrower, and make copies
thereof or extracts therefrom, and to discuss the business affairs, finances and
accounts of Borrower with, and be advised as to the same by, the officers,
employees and, if available, independent accountants Borrower.

         Section 6.9.      Maintenance of Property. Borrower will maintain, keep
                           -----------------------
and preserve all of its properties in good repair, working order and condition
and from time to time make all necessary repairs, renewals, replacements,
betterments and improvements thereto, so that the business carried on in
connection therewith may be properly conducted at all times.

         Section 6.10.     Notification of Events of Default and Adverse
                           ---------------------------------------------
Developments. Borrower promptly will notify Lender upon the occurrence of: (a)
------------
any Event of Default; (b) any event which, with the giving of notice or lapse of
time, or both, could constitute an Event of Default; (c) any event, development
or circumstance whereby the financial statements previously furnished to Lender
fail in any material respect to present fairly, in accordance with GAAP, the
financial condition and operational results of Borrower; (d) any judicial,
administrative or arbitration proceeding pending against Borrower, and any
judicial or administrative proceeding known by Borrower to be threatened against
it which, if adversely decided, could adversely affect its condition (financial
or otherwise) or operations (current or prospective) or which may expose
Borrower to uninsured liability of $250,000.00 or more; (e) any default claimed
by any other creditor for Borrowed Money of Borrower other than Lender in excess
of $50,000; and (f) any other development in the business or affairs of Borrower
which may be adverse; in each case describing the nature of the event or
development. In the case of notification under clauses (a) or (b) above),
Borrower should set forth the action Borrower proposes to take with respect to
such event.

         Section 6.11.     Employee Benefit Plans. Borrower will (a) comply with
                           ----------------------
the funding requirements of ERISA with respect to the Plans for its employees,
or will promptly satisfy any accumulated funding deficiency that arises under
Section 302 of ERISA; (b) furnish Lender, promptly after filing the same, with
copies of all reports or other statements filed with the United States
Department of Labor, the Pension Benefit Guaranty Corporation, or the Internal

<PAGE>

Revenue Service with respect to all Plans, or which Borrower, or any member of a
Controlled Group, may receive from such Governmental Authority with respect to
any such Plans, and (c) promptly advise Lender of the occurrence of any
Reportable Event or Prohibited Transaction with respect to any such Plan and the
action which Borrower proposes to take with respect thereto. Borrower will make
all contributions when due with respect to any multi-employer pension plan in
which it participates and will promptly advise Lender: (x) upon its receipt of
notice of the assertion against Borrower of a claim for withdrawal liability;
(y) upon the occurrence of any event which could trigger the assertion of a
claim for withdrawal liability against Borrower; and (z) upon the occurrence of
any event which would place Borrower in a Controlled Group as a result of which
any member (including Borrower) thereof may be subject to a claim for withdrawal
liability, whether liquidated or contingent.

         Section 6.12.     Financing Statements. Borrower shall provide to
                           --------------------
Lender evidence satisfactory to Lender as to the due recording of termination
statements, releases of collateral, and Forms UCC-3, and shall cause to be
recorded financing statements on Form UCC-1, duly executed by Borrower and
Lender, in all places necessary to release all existing security interests and
other liens in the Collateral (other than as permitted by this Agreement) and to
perfect and protect Lender's first priority lien and security interest in the
Collateral, as Lender may request.

         Section 6.13.     Financial Records. Borrower shall keep current and
                           -----------------
accurate books of records and accounts in which full and correct entries will be
made of all of its business transactions, and will reflect in its financial
statements adequate accruals and appropriations to reserves, all in accordance
with GAAP.

         Section 6.14.     Collection of Accounts. Borrower shall continue to
                           ----------------------
collect its Accounts in the ordinary course of business. Without limiting any of
Borrower's obligations or any of Lender's rights or remedies hereunder, Borrower
shall request that any and all payments of any Account Debtor with respect to
any of Borrower' Accounts be made only to the Lockbox Account. Borrower will not
direct or instruct Account Debtors to make payments to any party or entity that
is organized or exists outside of the United States. Borrower will not direct or
instruct Account Debtors to make payments to any other account. If for any
reason a payment is not sent to the Lockbox Account, Borrower, as required by
Section 2.3(b), shall immediately remit such payment to the Lockbox Account.

         Section 6.15.     Places of Business. Borrower shall give thirty (30)
                           ------------------
days' prior written notice to Lender of any change in the location of any of its
places of business, of the places where its records concerning its Accounts are
kept, of the places where the Collateral is kept, or of the establishment of any
new, or the discontinuance of any existing, places of business.

         Section 6.16.     Business Conducted. Borrower shall continue in the
                           ------------------
business currently conducted by it using its best efforts to maintain its
customers and goodwill. Borrower shall not engage, directly or indirectly, in
any line of business substantially different from the business conducted by it
immediately before the Closing Date, or engage in business or lines of business
which are not reasonably related thereto.

<PAGE>

         Section 6.17.     Litigation and Other Proceedings. Borrower shall give
                           --------------------------------
prompt notice to Lender of any litigation, arbitration, or other proceeding
before any Governmental Authority against or affecting Borrower if the amount
claimed is more than $250,000.00.

         Section 6.18.     Bank  Accounts.  Borrower shall assign to Lender all
                           ---------------
of its  depository  and  disbursement  accounts into which collections of
Accounts are deposited.

         Section 6.19.     Submission of Collateral Documents. Borrower will, on
                           ----------------------------------
demand of Lender, make available to Lender copies of shipping and delivery
receipts evidencing the shipment of goods that gave rise to an Account, a copy
of the invoice for each Account and copies of any written contract or order from
which the Account arose. Borrower shall promptly notify Lender if an Account
becomes evidenced or secured by an instrument or chattel paper and upon request
of Lender, will promptly deliver any such instrument or chattel paper to Lender.

         Section 6.20.     Licenses, Approvals. Borrower will maintain all
                           -------------------
licenses, permits, authorizations and approvals necessary to conduct its
business as currently conducted, and take any steps required to comply with any
such new or additional requirements that may be imposed on providers of medical
products and services.

         Section 6.21.     Officer's Certificates. Together with the monthly
                           ----------------------
financial statements delivered pursuant to clause (c) of Section 6.1, and
together with the audited annual financial statements delivered pursuant to
clause (f) of that Section, Borrower shall deliver to Lender a certificate of
its chief financial officer, in form and substance satisfactory to Lender:

                  (a) Setting forth the information (including detailed
calculations, if applicable) required to establish whether Borrower is in
compliance with the requirements of Articles VI and VII as of the end of the
period covered by the financial statements then being furnished; and

                  (b) Stating that the signer has reviewed the relevant terms of
this Agreement, and has made (or caused to be made under his supervision) a
review of the transactions and conditions of Borrower from the beginning of the
accounting period covered by the income statements being delivered to the date
of the certificate, and that such review has not disclosed the existence during
such period of any condition or event which constitutes an Event of Default or
which is then, or with the passage of time or giving of notice or both, could
become an Event of Default, and if any such condition or event existed during
such period or now exists, specifying the nature and period of existence thereof
and what action Borrower has taken or proposes to take with respect thereto.

         Section  6.22.    Net Worth.  Borrower will not at any time allow its
                           ----------
net worth,  as computed in  accordance  with GAAP, to fall below $20,000,000.00.

<PAGE>

         Section 6.23.     Termination/Default of Customer Contracts. Borrower
                           -----------------------------------------
will notify Lender of any (a) default or event of default under, (b) termination
of or (c) the failure of any party to renew any customer contract (unless the
default or event of default under, termination of or failure to renew such
customer contract, as the case may be, could not reasonably be expected to have
a material adverse effect on Borrower, including without limitation on
Borrower's business, the Collateral or the Loan hereunder) as soon as reasonably
possible (other than with respect to any notice of default, termination or
failure to renew that originates with Borrower, which notice shall be sent
concurrently to Lender). Notwithstanding anything in this Section 6.23 to the
contrary, no provision in this Section 6.23 shall be deemed to modify, reduce or
otherwise affect Lender's rights hereunder or under any other Loan Document.

         Section 6.24.     Capital Adequacy and Other Adjustments. In the event
                           --------------------------------------
that Lender shall have determined that the adoption after the date hereof of any
law, treaty, governmental (or quasi-governmental) rule, regulation, guideline or
order regarding capital adequacy, reserve requirements or similar requirements
or compliance by Lender or any corporation controlling Lender with any request
or directive regarding capital adequacy, reserve requirements or similar
requirements (whether or not having the force of law and whether or not failure
to comply therewith would be unlawful) from any central bank or governmental
agency or body having jurisdiction does or shall have the effect of increasing
the amount of capital, reserves or other funds required to be maintained by
Lender or any corporation controlling Lender and thereby reducing the rate of
return on Lender's or such corporation's capital as a consequence of its
obligations hereunder, then Borrower shall from time to time within fifteen (15)
days after notice and demand from Lender pay to Lender additional amounts
sufficient to compensate such Lender for such reduction. A certificate as to the
amount of such cost and showing the basis of the computation of such cost
submitted by such Lender to Borrower shall, absent manifest error, be final,
conclusive and binding for all purposes.

         Section 6.25.     Taxes.
                           -----
                  (a) Any and all payments or reimbursements made under the Loan
Documents shall be made free and clear of and without deduction for any and all
taxes, levies, imposts, deductions, charges or withholdings, and all liabilities
with respect thereto of any nature whatsoever imposed by any taxing authority,
excluding such taxes to the extent imposed on Lender's net income by the
jurisdiction in which Lender is organized. If Borrower shall be required by law
to deduct any such amounts from or in respect of any sum payable hereunder to
Lender, then the sum payable hereunder shall be increased as may be necessary so
that, after making all required deductions, Lender receives an amount equal to
the sum it would have received had no such deductions been made.

                  (b) In the event that, subsequent to the initial advance under
the Loan (i) any changes in any existing law, regulation, treaty or directive or
in the interpretation or application thereof, (ii) any new law, regulation,
treaty or directive enacted or any interpretation or application thereof, or
(iii) compliance by Lender with any request or directive (whether or not having
the force of law) from any governmental authority, agency or instrumentality:

<PAGE>

                           (A)      does or shall subject  Lender to any tax of
any kind  whatsoever  with respect to this Agreement orthe other Loan Documents,
or change the basis of taxation of payments to Lender of principal, fees,
interest or any other amount payable hereunder (except for net income taxes, or
franchise taxes imposed in lieu of net income taxes, imposed generally by
federal, state or local taxing authorities with respect to interest or
commitment fees or other fees payable hereunder or changes in the rate of tax on
the overall net income of Lender); or

                           (B)      does or shall  impose on Lender  any other
condition  or  increased  cost in  connection  with the transactions
contemplated hereby or participations herein;

and the result of any of the foregoing is to increase the cost to Lender of
making or continuing the Loan hereunder, as the case may be, or to reduce any
amount receivable hereunder, then, in any such case, Borrower shall promptly pay
to Lender, upon its demand, any additional amounts necessary to compensate
Lender, on an after-tax basis, for such additional cost or reduced amount
receivable, as determined by Lender with respect to this Agreement or the other
Loan Documents. If Lender becomes entitled to claim any additional amounts
pursuant to this subsection, it shall promptly notify Borrower of the event by
reason of which Lender has become so entitled. A certificate as to any
additional amounts payable pursuant to the foregoing sentence submitted by
Lender to Borrower shall, absent manifest error, be final, conclusive and
binding for all purposes.

         Section 6.26.     Further Documentation. In the event any further
                           ---------------------
documentation or information is (a) required by Lender or any prospective
transferee in connection with selling, transferring, delivering, assigning,
securitizing or granting a participation in the Loan (or transferring the
servicing of the Loan), or (b) deemed necessary or appropriate by Lender in the
exercise of its rights under the Loan Documents or to correct patent mistakes in
the Loan Documents, or the funding of the Loan, Borrower shall provide, or cause
to be provided to Lender, at Borrower's cost and expense, such documentation or
information. Borrower shall execute and deliver to Lender and/or the prospective
transferee or servicer such documentation, including but not limited to, any
amendments, corrections, deletions or additions to the Loan Documents as is
required by Lender and/or the prospective transferee; provided, however, that
Borrower shall not be required to do anything that has the effect of changing
the essential economic terms of the Loan set forth in the Loan Documents.

         Section 6.27.     Compliance with Requirements of Prospective
                           -------------------------------------------
Transferee. Borrower shall do anything necessary to comply with the requirements
----------
of any prospective transferee or servicer of the Loan, in order to enable Lender
or such transferee to sell, transfer, deliver, assign, securitize or grant a
participation in the Loan; provided, however, that Borrower shall not be
required to do anything that has the effect of changing the essential economic
terms of this Agreement.

<PAGE>

                                   ARTICLE VII

                               NEGATIVE COVENANTS
                               ------------------

         Each entity comprising Borrower covenants and agrees that so long as
Borrower may borrow under this Agreement and until payment in full of the Note
and performance of all other obligations of Borrower under the Loan Documents:

         Section 7.1.      Borrowing. Borrower will not create, incur, assume or
                           ---------
suffer to exist any liability for Borrowed Money except: (a) indebtedness to
Lender; (b) indebtedness of Borrower secured by mortgages, encumbrances or liens
expressly permitted by Section 7.3; (c) accounts payable to trade creditors and
current operating expenses (other than for Borrowed Money) which are not aged
more than one hundred twenty (120) days from the billing date or more than
thirty (30) days from the due date, in each case incurred in the ordinary course
of business and paid within such time period, unless the same are either (i)
being contested in good faith and by appropriate and lawful proceedings, and
Borrower shall have set aside such reserves, if any, with respect thereto as are
required by GAAP and deemed adequate by Borrower and its independent
accountants, or (ii) relate to a creditor with whom Borrower has in the ordinary
course of its business developed a custom and practice that permits Borrower to
pay such accounts payable over a more favorable time period than that described
in this Section 7.1(c); (d) borrowings that are described on Schedule 7.1, and
(e) borrowings incurred in the ordinary course of its business and not exceeding
$500,000.00 in the aggregate outstanding at any one time. Borrower will not make
prepayments on any existing or future indebtedness for Borrowed Money to any
Person (other than Lender, to the extent permitted by this Agreement or any
subsequent agreement between Borrower and Lender).

         Section 7.2.      Joint Ventures. Borrower will not invest directly or
                           --------------
indirectly in any joint venture for any purpose without the prior written notice
to, and the prior written consent of, Lender, which consent shall not be
unreasonably withheld.

         Section 7.3.      Liens and Encumbrances. Borrower will not create,
                           ----------------------
incur, assume or suffer to exist any mortgage, pledge, lien or other encumbrance
of any kind (including the charge upon property purchased under a conditional
sale or other title retention agreement) upon, or any security interest in, any
of its Collateral, whether now owned or hereafter acquired, except for Permitted
Liens.

         Section 7.4.      Restriction on Fundamental Changes. Except as
                           ----------------------------------
disclosed on Schedule 7.4, Borrower will not: (a) enter into any transaction of
merger or consolidation; (b) liquidate, wind-up or dissolve itself (or suffer
any liquidation or dissolution); (c) convey, sell, lease, sublease, transfer or
otherwise dispose of, in one transaction or a series of transactions, any of its
assets (except for any sales of assets undertaken in the ordinary course of
Borrower's business), or the capital stock of any subsidiary of Borrower,
whether now owned or hereafter acquired; or (d) acquire by purchase or otherwise
all or any substantial part of the business or assets of, or stock or other
evidence of beneficial ownership of, any Person; provided that, notwithstanding

<PAGE>

the foregoing, LS Japan Company, Ltd. shall be permitted to liquidate, wind-up
or dissolve itself, as the case may be, at any time after the date of this
Agreement. Borrower agrees that compliance with this Section 7.4 is a material
inducement to Lender's advancing credit under this Agreement. Borrower further
agrees that in addition to all other remedies available to Lender, Lender shall
be entitled to specific enforcement of the covenants in this Section 7.4,
including injunctive relief.

         Section 7.5.      Sale and Leaseback. Borrower will not, directly or
                           ------------------
indirectly, enter into any arrangement whereby Borrower sells or transfers all
or any part of its assets and thereupon and within one year thereafter rents or
leases the assets so sold or transferred without prior written notice to and the
prior written consent of Lender, which consent shall not be unreasonably
withheld.

         Section 7.6.      Dividends, Distributions and Management Fees. Except
                           --------------------------------------------
as disclosed on Schedule 7.6, Borrower shall not make any Distributions (as
defined below) to any of its Affiliates, to any non-employed shareholder,
member, partner or other person holding an equity interest in Borrower or to any
related to or affiliated with any of the foregoing. For purposes hereof,
"Distributions" shall mean management fees, salaries or other fees or
compensation, lease or rental payments, repayments of or debt service on loans
or other indebtedness, dividends or other distributions with respect to any of
its stock, partnership or membership interests (as the case may be) now or
hereafter outstanding, the purchase, redemption or other acquisition for value
of any of its stock, partnership or membership interests (as the case may be)
now or hereafter outstanding, or the return of any capital of its stockholders,
partners or members.

         Section 7.7.      Loans. Borrower will not make loans or advances to
                           -----
any Person, other than (a) trade credit extended in the ordinary course of its
business, and (b) advances for business travel and similar temporary advances
made in the ordinary course of business to officers, stockholders, directors,
and employees.

         Section 7.8.      Contingent Liabilities. Borrower will not assume,
                           ----------------------
guarantee, endorse, contingently agree to purchase or otherwise become liable
upon the obligation of any Person, except by the endorsement of negotiable
instruments for deposit or collection or similar transactions in the ordinary
course of business.

         Section 7.9.      Subsidiaries.  Except for  subsidiaries  of any
                           ------------
entity  comprising  Borrower that are also an entity  comprising Borrower,
Borrower will not form any  subsidiary,  or make any  investment in or any loan
in the nature of an investment to, any other Person.  Borrower  will not (i)
cause or permit LS Japan  Company,  Ltd. to have any assets,  (ii) deposit money
in any account held by or  established  for the benefit of LS Japan  Company,
Ltd.,  and (iii)  utilize LS Japan  Company,  Ltd. in the conduct of Borrower's
business.

         Section 7.10.     Compliance with ERISA. Borrower will not permit with
                           ---------------------
respect to any Plan covered by Title IV of ERISA any Prohibited Transaction or
any Reportable Event.

<PAGE>

         Section 7.11.     Licenses, Approvals. Borrower will not amend, alter
                           -------------------
or suspend or terminate or make provisional in any way, any material license,
permit, authorization or approval without the prior written consent of Lender,
which consent shall not be unreasonably withheld.

         Section 7.12.     Transactions with Affiliates. Borrower will not enter
                           ----------------------------
into any transaction, including without limitation the purchase, sale, or
exchange of property, or the loaning or giving of funds to any Affiliate or
subsidiary, except in the ordinary course of business and pursuant to the
reasonable requirements of Borrower's business and upon terms substantially the
same and no less favorable to Borrower as it would obtain in a comparable arm's
length transaction with any Person not an Affiliate or subsidiary, and so long
as the transaction is not otherwise prohibited under this Agreement. For
purposes of the foregoing, Lender consents to the transactions described on
Schedule 7.12.

         Section 7.13.     Use of Lender's Name. Borrower will not use Lender's
                           --------------------
name (or the name of any of Lender's affiliates) in connection with any of its
business operations. Borrower may disclose to third parties that Borrower has a
borrowing relationship with Lender. Nothing contained in this Agreement is
intended to permit or authorize Borrower to make any contract on behalf of
Lender.

         Section 7.14.     Change in Capital Structure.
                           ---------------------------
                  (a) With respect to each entity comprising Borrower except for
LaserSight Incorporated, there shall occur no change in the ownership of such
Borrower's capital stock or in such Borrower's capital structure, both as set
forth in Schedule 4.17.

                  (b) With respect to LaserSight Incorporated, there shall occur
no change in the ownership of such Borrower's capital stock or in such
Borrower's capital structure, both as set forth in Schedule 4.17, except as
expressly provided herein. Notwithstanding the foregoing, LaserSight
Incorporated may sell or transfer its shares of capital stock, or shares of its
capital stock that are convertible, exchangeable or exercisable for shares of
its capital stock, that are listed for trading on any public exchange, provided
that with respect to any such change that would result in any Person who, prior
to giving effect to such change, was the beneficial owner of less than five
percent (5%) of the outstanding capital stock of Borrower on a fully diluted
basis prior to such change becoming the beneficial owner of five percent (5%) or
more of the outstanding capital stock of Borrower on a fully diluted basis
following such change, Lender shall be advised in writing of such change within
a reasonable period thereafter; and provided further, that any such sale or
other transfer hereunder, individually or in the aggregate, shall not result in
a Change in Control (as defined below). For purposes hereof, a "Change in
Control" shall mean any sale or other transfer of any capital stock of Borrower
such that, immediately after giving effect to such sale or other transfer, any
one or more Persons who held the outstanding capital stock of Borrower on a
fully diluted basis immediately prior to such sale or other transfer cease to
hold at least 50% of the outstanding capital stock of Borrower on a fully
diluted basis immediately following such sale or other transfer.

<PAGE>

         Section 7.15.     Contracts and Agreements. Borrower will not become or
                           ------------------------
be a party to any contract or agreement which would breach this Agreement, or
breach any other material instrument, agreement, or document to which Borrower
is a party or by which it is or may be bound.

         Section 7.16.     Margin Stock.  Borrower will not carry or purchase
                           -------------
any "margin  security"  within the meaning of Regulations U,T or X of the Board
of Governors of the Federal Reserve System.

         Section 7.17.     Truth of Statements and Certificates. Borrower will
                           ------------------------------------
not furnish to Lender any certificate or other document that contains any untrue
statement of a material fact or that omits to state a material fact necessary to
make it not misleading in light of the circumstances under which it was
furnished.

                                  ARTICLE VIII

                                EVENTS OF DEFAULT
                                -----------------

         Section 8.1.      Events of Default. Each of the following
                           -----------------
(individually, an "Event of Default" and collectively, the "Events of Default")
shall constitute an event of default under this Agreement:

                  (a) A default in the payment of any installment of principal
of, or interest upon, the Note when due and payable, whether at maturity or
otherwise, or any breach of Section 2.3, which default or breach, as applicable,
shall have continued unremedied for a period of five (5) days after written
notice of the default or breach from Lender to Borrower;

                  (b) A default in the payment of any other charges, fees, or
other monetary obligations owing to Lender arising out of or incurred in
connection with this Agreement when such payment is due and payable, which
default shall have continued unremedied for a period of five (5) days after
written notice of the default from Lender to Borrower;

                  (c) A default in the due observance or performance by Borrower
of any other term, covenant or agreement contained in any of the Loan Documents,
which default shall have continued unremedied for a period of ten (10) days
after written notice of the default from Lender to Borrower;

                  (d) Any representation or warranty made by Borrower in this
Agreement or in any of the other Loan Documents, any financial statement, or any
statement or representation made in any other certificate, report or opinion
delivered in connection with this Agreement or the other Loan Documents proves
to have been incorrect or misleading in any material respect when made, which
default shall have continued unremedied for a period of ten (10) days after
written notice of the default from Lender to Borrower;

<PAGE>

                  (e) Any obligation of Borrower (other than its Obligations
under this Agreement) for the payment of Borrowed Money is not paid when due or
within any applicable grace period, or such obligation becomes or is declared to
be due and payable before the expressed maturity of the obligation, or there
shall have occurred an event which, with the giving of notice or lapse of time,
or both, would cause any such obligation to become, or allow any such obligation
to be declared to be, due and payable;

                  (f) Borrower makes an assignment for the benefit of creditors,
offers a composition or extension to creditors, or makes or sends notice of an
intended bulk sale of any business or assets now or hereafter conducted by
Borrower;

                  (g) Borrower (i) files a petition in bankruptcy, (ii) is
adjudicated insolvent or bankrupt, petitions or applies to any tribunal for any
receiver of or any trustee for itself or any substantial part of its property,
(iii) commences any proceeding relating to itself under any reorganization,
arrangement, readjustment or debt, dissolution or liquidation law or statute of
any jurisdiction, whether now or hereafter in effect, (iv) has any such
proceeding commenced against it and such proceeding remains undismissed for a
period of sixty (60) days, (v) by any act indicates its consent to, approval of,
or acquiescence in, any such proceeding or the appointment of any receiver of or
any trustee for it or any substantial part of its property, or suffers any such
receivership or trusteeship to continue undischarged for a period of sixty (60)
days;

                  (h) One or more (i) final judgments against Borrower or
attachments against its property shall be rendered by a court, arbitrator,
arbitration panel, mediator or any individual(s) or entity with the authority to
issue binding judgments against Borrower or (ii) final settlements by or on
behalf of Borrower of any pending litigation, arbitration or other claim or
otherwise disputed matter, in any event at least $500,000.00 of which,
individually or in the aggregate, is not fully and unconditionally covered by
insurance, shall remain unpaid, unstayed on appeal, undischarged, unbonded and
undismissed for a period of thirty (30) days;

                  (i) A Reportable Event which might constitute grounds for
termination of any Plan covered by Title IV of ERISA or for the appointment by
the appropriate United States District Court of a trustee to administer any such
Plan or for the entry of a lien or encumbrance to secure any deficiency, has
occurred and is continuing thirty (30) days after its occurrence, or any such
Plan is terminated, or a trustee is appointed by an appropriate United States
District Court to administer any such Plan, or the Pension Benefit Guaranty
Corporation institutes proceedings to terminate any such Plan or to appoint a
trustee to administer any such Plan, or a lien or encumbrance is entered to
secure any deficiency or claim;

                  (j) Any outstanding stock of Borrower is sold or otherwise
transferred by the Person owning such stock on the date of this Agreement in
violation of or other than as expressly permitted in Section 7.14;

<PAGE>

                  (k) There shall occur any uninsured  damage to or loss,  theft
or destruction of any portion of the Collateralthat exceeds $250,000.00 in the
aggregate on an annual basis;

                  (l) Borrower breaches or violates the terms of, or a default
or an event which could, whether with notice or the passage of time, or both,
constitute a default, occurs under any other existing or future agreement
(related or unrelated) between Borrower and Lender;

                  (m) Upon the issuance of any  execution or distraint
process  against  Borrower or any material  portion of its property or assets;

                  (n) Borrower ceases any material portion of its business
 operations as currently conducted;

                  (o) Any indication or evidence is received by Lender that
Borrower may have directly or indirectly been engaged in any type of activity
which, in Lender's discretion, may result in the forfeiture of any property of
Borrower to any Governmental Authority, which default shall have continued
unremedied for a period of ten (10) days after written notice from Lender;

                  (p) Borrower or any Affiliate of Borrower, shall challenge or
contest, in any action, suit or proceeding, the validity or enforceability of
this Agreement, or any of the other Loan Documents, the legality or the
enforceability of any of the Obligations or the perfection or priority of any
Lien granted to Lender;

                  (q) Borrower  shall be  criminally  indicted or convicted
under any law that could lead to a forfeiture  of any Collateral;

                  (r) There shall occur a material adverse change in the
financial condition or business operations of Borrower, or if Lender in good
faith deems itself insecure as a result of acts or events bearing upon the
financial condition of Borrower or the repayment of the Note, which default
shall have continued unremedied for a period of ten (10) days after written
notice from Lender; or

                  (s) A default or event of default occurs under any other note,
instrument, deed of trust, mortgage, loan agreement, security agreement, letter
agreement or other document executed and delivered by any Borrower or Guarantor,
or any Affiliate of Borrower or Guarantor, in connection with any financing
provided by Lender or Lender's Affiliate to any such parties;

                  (t) Borrower shall fail to have obtained Class III approval
from the U.S. Food and Drug Administration for its astigmatism procedure on or
before December 31, 2001;

                  (u) Borrower shall have failed to comply with the requirements
of Section 6.14; or

<PAGE>

                  (v) An Event of Default shall have occurred under any of the
Affiliated Loan Documents.

         Section 8.2.      Acceleration. Upon the occurrence of any of the
                           ------------
foregoing Events of Default, the Obligations under the Note shall become and be
immediately due and payable upon declaration to that effect delivered by Lender
to Borrower; provided that, upon the happening of any event specified in Section
8.1(g), all Obligations including, without limitation the Termination Fee, shall
be immediately due and payable without declaration or other notice to Borrower.

         Section 8.3.      Remedies.
                           --------

                  (a) Upon the occurrence of and during the continuance of an
Event of Default under this Agreement or the other Loan Documents, Lender, in
addition to all other rights, options, and remedies granted to Lender under this
Agreement or at law or in equity, may take any of the following steps (which
list is given by way of example and is not intended to be an exhaustive list of
all such rights and remedies):

                           (i)      Terminate  the Loan,  whereupon all
outstanding  Obligations  (including  without  limitation  the Termination Fee)
 shall be immediately due and payable;

                           (ii)     Exercise  all other  rights  granted to it
under  this  Agreement  and all rights  under the UCC in effect in the
applicable jurisdiction(s) and under any other applicable law; and

                           (iii)    Exercise all rights and remedies  under all
Loan  Documents  now or hereafter in effect,  including but not limited to:

                                    (A)     The  right to take  possession  of,
send  notices  regarding,  and  collect  directly  the Collateral, with or
 without judicial process;

                                    (B)     The  right to (by its own  means  or
with  judicial  assistance)  enter  any of  Borrower's premises and take
possession of the Collateral, or render it unusable, or dispose of the
Collateral on such premises in compliance with subsection (C) below, without any
liability for rent, storage, utilities, or other sums, and Borrower shall not
resist or interfere with such action;

                                    (C)     The right to require  Borrower at
Borrower's  expense to  assemble  all or any part of the Collateral and make it
available to Lender at any place designated by Lender; and

<PAGE>

                                    (D)     The right to reduce the Maximum
Loan Amount or to use the  Collateral  and/or funds in the Concentration Account
in amounts up to the Maximum Loan Amount for any reason.

                  (b) Borrower agrees that a notice received by it at least five
(5) days before the time of any intended public sale, or the time after which
any private sale or other disposition of the Collateral is to be made, shall be
deemed to be reasonable notice of such sale or other disposition. If permitted
by applicable law, any perishable Collateral which threatens to speedily decline
in value or which is sold on a recognized market may be sold immediately by
Lender without prior notice to Borrower. At any sale or disposition of
Collateral, Lender may (to the extent permitted by applicable law) purchase all
or any part of the Collateral, free from any right of redemption by Borrower,
which right is hereby waived and released. Borrower covenants and agrees not to
interfere with or impose any obstacle to Lender's exercise of its rights and
remedies with respect to the Collateral.

         Section 8.4.      Nature of Remedies. Lender shall have the right to
                           ------------------
proceed against all or any portion of the Collateral to satisfy in any order (a)
the liabilities and Obligations of Borrower or any of its subsidiaries or
Affiliates to Lender or any Affiliate of Lender under this Agreement or any
other loan documents evidencing financings provided to Borrower or (b) upon the
occurrence of an Event of Default under the Affiliated Loan Documents, the
liabilities and obligations of Borrower to Lender or any of its Affiliates under
the Affiliated Loan Documents (as defined in Section 3.1). All rights and
remedies granted Lender under this Agreement and under any agreement referred to
in this Agreement, or otherwise available at law or in equity, shall be deemed
concurrent and cumulative, and not alternative remedies, and Lender may proceed
with any number of remedies at the same time until the Loans, and all other
existing and future liabilities and obligations of Borrower to Lender, are
satisfied in full. The exercise of any one right or remedy shall not be deemed a
waiver or release of any other right or remedy, and Lender, upon the occurrence
of an Event of Default, may proceed against Borrower, and/or the Collateral, at
any time, under any agreement, with any available remedy and in any order.

                                   ARTICLE IX

                                  MISCELLANEOUS
                                  -------------

         Section 9.1.      Expenses and Taxes.
                           ------------------
                  (a) Borrower agrees to pay, whether or not the Closing occurs,
a reasonable documentation preparation fee, together with actual audit and
appraisal fees and all other reasonable out-of-pocket charges and expenses
incurred by Lender in connection with the negotiation, preparation, legal review
and execution of each of the Loan Documents, including but not limited to UCC
and judgment lien searches and UCC filings and fees for post-Closing UCC and
judgment lien searches. In addition, Borrower shall pay all such fees associated
with any amendments to the Loan Documents following Closing.

<PAGE>

                  (b) Borrower also agrees to pay all out-of-pocket charges and
expenses incurred by Lender (including the fees and expenses of Lender's
counsel) in connection with the enforcement, protection or preservation of any
right or claim of Lender, the termination of this Agreement, the termination of
any liens of Lender on the Collateral, or the collection of any amounts due
under the Loan Documents. If Lender uses in-house counsel for any of these
purposes (i.e., for any task in connection with the enforcement, protection or
preservation of any right or claim of Lender and the collection of any amounts
due under its Loan Documents), Borrower further agrees that its Obligations
under the Loan Documents include reasonable charges for such work, provided that
such charges shall be based on Lender's allocated costs associated with the use
of Lender's in-house counsel for such work.

                  (c) Borrower shall pay all taxes (other than taxes based upon
or measured by Lender's income or revenues or any personal property tax), if
any, in connection with the issuance of the Note and the recording of the
security documents therefor. The obligations of Borrower under this clause (c)
shall survive the payment of Borrower's indebtedness under this Agreement and
the termination of this Agreement.

         Section 9.2.      Entire Agreement; Amendments. This Agreement and the
                           ----------------------------
other Loan Documents constitute the full and entire understanding and agreement
among the parties with regard to their subject matter and supersede all prior
written or oral agreements, understandings, representations and warranties made
with respect thereto. No amendment, supplement or modification of this Agreement
nor any waiver of any provision thereof shall be made except in writing executed
by the party against whom enforcement is sought.

         Section 9.3.      No Waiver; Cumulative Rights. No waiver by any party
                           ----------------------------
to this Agreement of any one or more defaults by the other party in the
performance of any of the provisions of this Agreement shall operate or be
construed as a waiver of any future default or defaults, whether of a like or
different nature. No failure or delay on the part of any party in exercising any
right, power or remedy under this Agreement shall operate as a waiver of such
right, power or remedy nor shall any single or partial exercise of any such
right, power or remedy preclude any other or further exercise of such right,
power or remedy or the exercise of any other right, power or remedy. The
remedies provided for in this Agreement are cumulative and are not exclusive of
any remedies that may be available to any party to this Agreement at law, in
equity or otherwise.

         Section 9.4.      Notices. Any notice or other communication required
                           -------
or permitted under this Agreement shall be in writing and personally delivered,
mailed by registered or certified mail (return receipt requested and postage
prepaid), sent by telecopier (with a confirming copy sent by regular mail), or
sent by prepaid overnight courier service, and addressed to the relevant party
at its address set forth below, or at such other address as such party may, by
written notice, designate as its address for purposes of notice under this
Agreement:

<PAGE>

                  (a)      If to Lender, at:

                           Heller Healthcare Finance, Inc.
                           2 Wisconsin Circle, 4th Floor
                           Chevy Chase, Maryland 20815
                           Attention:  Pascale Bissainthe, Esq., Chief Counsel
                           Telephone:  (301) 961-1640
                           Telecopier:  (301) 664-9866

                  (b)      If to Borrower, at:

                           LaserSight Incorporated
                           3300 University Boulevard, Suite 140
                           Winter Park, Florida  32792
                           Attention:  Chief Financial Officer
                           Telephone:  (407) 678-9900
                           Telecopier:  (407) 678-9982

                           With a copy to:

                           The Lowenbaum Partnership, L.L.C.
                           222 South Central, Suite 901
                           St. Louis, Missouri  63105
                           Attention:  Timothy L. Elliott, Esq.
                           Telephone:  (314) 746-4880
                           Telecopier:  (314) 746-4848

If mailed, notice shall be deemed to be given five (5) days after being sent,
and if sent by personal delivery, telecopier or prepaid courier, notice shall be
deemed to be given when delivered.

         Section 9.5.      Severability. If any term, covenant or condition of
                           ------------
this Agreement, or the application of such term, covenant or condition to any
party or circumstance shall be found by a court of competent jurisdiction to be,
to any extent, invalid or unenforceable, the remainder of this Agreement and the
application of such term, covenant, or condition to parties or circumstances
other than those as to which it is held invalid or unenforceable, shall not be
affected thereby, and each term, covenant or condition shall be valid and
enforced to the fullest extent permitted by law. Upon determination that any
such term is invalid, illegal or unenforceable, Lender may, but is not obligated
to, advance funds to Borrower under this Agreement until the parties to this
Agreement amend this Agreement so as to effect the original intent of the
parties as closely as possible in a valid and enforceable manner.

         Section 9.6.      Successors and Assigns. This Agreement, the Note, and
                           ----------------------
the other Loan Documents shall be binding upon and inure to the benefit of

<PAGE>

Borrower and Lender and their respective successors and assigns. Notwithstanding
the foregoing, Borrower may not assign any of its rights or delegate any of its
obligations under this Agreement without the prior written consent of Lender,
which may be withheld in its sole discretion. Lender may sell, assign, transfer,
or participate any or all of its rights or obligations under this Agreement
without consent of Borrower, provided that Lender will provide Borrower notice
of such sale, assignment, transfer or participation.

         Section 9.7.      Counterparts.  This  Agreement may be executed in any
                           -------------
number of  counterparts,  each of which shall be deemed anoriginal, but all of
which together shall constitute but one instrument.

         Section 9.8.      Interpretation. No provision of this Agreement or any
                           --------------
other Loan Document shall be interpreted or construed against any party because
that party or its legal representative drafted that provision. The titles of the
paragraphs of this Agreement are for convenience of reference only and are not
to be considered in construing this Agreement. Any pronoun used in this
Agreement shall be deemed to include singular and plural and masculine, feminine
and neuter gender as the case may be. The words "herein," "hereof," and
"hereunder" shall be deemed to refer to this entire Agreement, except as the
context otherwise requires.

         Section 9.9.      Survival of Terms. All covenants, agreements,
                           -----------------
representations and warranties made in this Agreement, any other Loan Document,
and in any certificates and other instruments delivered in connection with this
Agreement shall be considered to have been relied upon by Lender and shall
survive the making by Lender of the Loans contemplated by this Agreement and the
execution and delivery to Lender of the Note, and shall continue in full force
and effect until all liabilities and obligations of Borrower to Lender are
satisfied in full.

         Section 9.10.     Release of Lender. For and in consideration of the
                           -----------------
Loan, Borrower, voluntarily, knowingly, unconditionally, and irrevocably, with
specific and express intent, for and on behalf of itself and its agents,
attorneys, heirs, successors, and assigns (collectively the "Releasing Parties")
does hereby fully and completely release, acquit and forever discharge Lender,
and its successors, assigns, heirs, affiliates, subsidiaries, parent companies,
principals, directors, officers, employees, shareholders and agents (hereinafter
called the "Released Parties"), of and from any and all actions, causes of
action, suits, debts, disputes, damages, claims, obligations, liabilities,
costs, expenses and demands of any kind whatsoever, at law or in equity, whether
matured or unmatured, liquidated or unliquidated, vested or contingent, known or
unknown that the Releasing Parties (or any of them) currently have (whether
directly or indirectly) against any or all of the Released Parties. The Borrower
acknowledges that the foregoing release is a material inducement to Lender's
decision to extend to Borrower the financial accommodations hereunder and has
been relied upon by Lender in agreeing to make the Loan.

         Section 9.11.     Time. Whenever Borrower is required to make any
                           ----
payment or perform any act on any day other than a Business Day in Maryland (or
other jurisdiction where Borrower is required to make the payment or perform the
act), the payment may be made or the act performed on the next Business Day.
Time is of the essence in Borrower's performance under this Agreement and all
other Loan Documents.

<PAGE>

         Section 9.12.     Commissions. The transaction contemplated by this
                           -----------
Agreement was brought about by Lender and Borrower acting as principals and
without any brokers, agents, or finders being the effective procuring cause.
Borrower represents that it has not committed Lender to the payment of any
brokerage fee, commission, or charge in connection with this transaction. If any
such claim is made on Lender by any broker, finder, or agent or other person,
Borrower will indemnify, defend, and hold Lender harmless from and against the
claim and will defend any action to recover on that claim, at Borrower's cost
and expense, including Lender's counsel fees. Borrower further agrees that until
any such claim or demand is adjudicated in Lender's favor, the amount demanded
will be deemed a liability of Borrower under this Agreement, secured by the
Collateral.

         Section 9.13.     Third Parties. No rights are intended to be created
                           -------------
under this Agreement or under any other Loan Document for the benefit of any
third party donee, creditor, or incidental beneficiary of Borrower. Nothing
contained in this Agreement shall be construed as a delegation to Lender of
Borrower's duty of performance, including without limitation Borrower's duties
under any account or contract in which Lender has a security interest.

         Section 9.14.     Discharge of Borrower's Obligations. Lender, in its
                           -----------------------------------
sole discretion, shall have the right at any time, and from time to time,
without prior notice to Borrower if Borrower fails to do so, to: (a) obtain
insurance covering any of the Collateral as required under this Agreement; (b)
pay for the performance of any of Borrower's obligations under this Agreement;
(c) discharge taxes, liens, security interests, or other encumbrances at any
time levied or placed on any of the Collateral in violation of this Agreement
unless Borrower is in good faith with due diligence by appropriate proceedings
contesting those items; and (d) pay for the maintenance and preservation of any
of the Collateral. Expenses and advances shall be added to the Loan, until
reimbursed to Lender and shall be secured by the Collateral. Any such payments
and advances by Lender shall not be construed as a waiver by Lender of an Event
of Default.

         Section 9.15.     Information to Participants. Lender may divulge to
                           ---------------------------
any participant it may obtain in the Loan, or any portion of the Loan, all
information, and furnish to such participant copies of reports, financial
statements, certificates, and documents obtained under any provision of this
Agreement or any other Loan Document.

         Section 9.16.     Indemnity. Borrower hereby agrees to indemnify and
                           ---------
hold harmless Lender, its partners, officers, agents and employees
(collectively, "Indemnitee") from and against any liability, loss, cost,
expense, claim, damage, suit, action or proceeding ever suffered or incurred by
Lender (including reasonable attorneys' fees and expenses) arising from
Borrower's failure to observe, perform or discharge any of its covenants,
obligations, agreements or duties under this Agreement, or from the breach of
any of the representations or warranties contained in Article IV of this
Agreement. In addition, Borrower shall defend Indemnitee against and save it
harmless from all claims of any Person with respect to the Collateral.

<PAGE>

         Section 9.17.     Lender Approvals. Unless expressly provided herein to
                           ----------------
the contrary, any approval, consent, waiver or satisfaction of Lender with
respect to any matter that is the subject of this Agreement, the other Loan
Documents may be granted or withheld by Lender in its sole and absolute
discretion.

         Section 9.18.     Choice of Law; Consent to Jurisdiction. THIS
                           --------------------------------------
AGREEMENT AND THE NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE LAWS OF THE STATE OF MARYLAND, WITHOUT REGARD TO ANY OTHERWISE APPLICABLE
PRINCIPLES OF CONFLICTS OF LAWS. IF ANY ACTION ARISING OUT OF THIS AGREEMENT OR
THE NOTE IS COMMENCED BY LENDER IN THE STATE COURTS OF THE STATE OF MARYLAND OR
IN THE U.S. DISTRICT COURT FOR THE DISTRICT OF MARYLAND, BORROWER HEREBY
CONSENTS TO THE JURISDICTION OF ANY SUCH COURT IN ANY SUCH ACTION AND TO THE
LAYING OF VENUE IN THE STATE OF MARYLAND. ANY PROCESS IN ANY SUCH ACTION SHALL
BE DULY SERVED IF MAILED BY REGISTERED MAIL, POSTAGE PREPAID, TO BORROWER AT ITS
ADDRESS DESCRIBED IN SECTION 9.4. OR IF SERVED BY ANY OTHER MEANS PERMITTED BY
APPLICABLE LAW.

         Section 9.19.     Cooperation in Discovery and Litigation. In any
                           ---------------------------------------
litigation, trial, arbitration or other dispute resolution proceeding relating
to this Agreement or any of the other Loan Documents, all directors, officers,
employees and agents of Borrower or of its Affiliates shall be deemed to be
employees or managing agents of Borrower for purposes of all applicable law or
court rules regarding the production of witnesses by notice for testimony
(whether in a deposition, at trial or otherwise). Borrower agrees that Lender's
counsel in any such dispute resolution proceeding may examine any of these
individuals as if under cross-examination and that any discovery deposition of
any of them may be used in that proceeding as if it were an evidence deposition.
Borrower in any event will use all commercially reasonable efforts to produce in
any such dispute resolution proceeding, at the time and in the manner requested
by Lender, all Persons, documents (whether in tangible, electronic or other
form) or other things under its control and relating to the dispute in any
jurisdiction that recognizes that (or any similar) distinction.

         Section 9.20.     Waiver of Trial by Jury. BORROWER HEREBY (A)
                           -----------------------
COVENANTS AND AGREES NOT TO ELECT A TRIAL BY JURY OF ANY ISSUE TRIABLE OF RIGHT
BY A JURY, AND (B) WAIVES ANY RIGHT TO TRIAL BY JURY FULLY TO THE EXTENT THAT
ANY SUCH RIGHT SHALL NOW OR HEREAFTER EXIST. THIS WAIVER OF RIGHT TO TRIAL BY
JURY IS SEPARATELY GIVEN, KNOWINGLY AND VOLUNTARILY, BY BORROWER, AND THIS
WAIVER IS INTENDED TO ENCOMPASS INDIVIDUALLY EACH INSTANCE AND EACH ISSUE AS TO
WHICH THE RIGHT TO A JURY TRIAL WOULD OTHERWISE ACCRUE. LENDER IS HEREBY

<PAGE>

AUTHORIZED AND REQUESTED TO SUBMIT THIS AGREEMENT TO ANY COURT HAVING
JURISDICTION OVER THE SUBJECT MATTER AND THE PARTIES TO THIS AGREEMENT, SO AS TO
SERVE AS CONCLUSIVE EVIDENCE OF BORROWER'S WAIVER OF THE RIGHT TO JURY TRIAL.
FURTHER, BORROWER HEREBY CERTIFIES THAT NO REPRESENTATIVE OR AGENT OF LENDER
(INCLUDING LENDER'S COUNSEL) HAS REPRESENTED, EXPRESSLY OR OTHERWISE, TO
BORROWER THAT LENDER WILL NOT SEEK TO ENFORCE THIS WAIVER OF RIGHT TO JURY TRIAL
PROVISION.

         Section 9.21.     Confession of Judgment. BORROWER AUTHORIZES ANY
                           ----------------------
ATTORNEY ADMITTED TO PRACTICE BEFORE ANY COURT OF RECORD IN THE UNITED STATES OR
THE CLERK OF SUCH COURT TO APPEAR ON BEHALF OF BORROWER IN ANY COURT IN ONE OR
MORE PROCEEDINGS, OR BEFORE ANY CLERK THEREOF OF PROTHONOTARY OR OTHER COURT
OFFICIAL, AND TO CONFESS JUDGMENT AGAINST BORROWER IN FAVOR OF LENDER IN THE
FULL AMOUNT DUE ON THIS AGREEMENT (INCLUDING PRINCIPAL, ACCRUED INTEREST AND ANY
AND ALL CHARGES, FEES AND COSTS) PLUS ATTORNEYS' FEES EQUAL TO FIFTEEN PERCENT
(15%) OF THE AMOUNT DUE, PLUS COURT COSTS, ALL WITHOUT PRIOR NOTICE OR
OPPORTUNITY OF BORROWER FOR PRIOR HEARING. NOTWITHSTANDING ANY OTHER PROVISIONS
OF THIS SECTION, LENDER ACKNOWLEDGES THAT ATTORNEYS' FEES ARE STATED TO BE
FIFTEEN PERCENT (15%) SOLELY FOR PURPOSES OF FIXING A SUM CERTAIN FOR WHICH
JUDGMENT CAN BE ENTERED BY CONFESSION; AND LENDER AGREES THAT IN ENFORCING ANY
JUDGMENT BY CONFESSION, LENDER SHALL NOT DEMAND, SOLELY WITH RESPECT TO
ATTORNEYS' FEES INCURRED BY LENDER IN CONNECTION WITH SUCH INDEBDTEDNESS AFTER
SUCH JUDGMENT IS RENDERED, ANY AMOUNTS IN EXCESS OF THE ACTUAL AMOUNT OF
ATTORNEYS' FEES CHARGED OR BILLED TO LENDER (WHICH ATTORNEYS' FEES SHALL CHARGED
OR BILLED TO LENDER AT THE STANDARD HOURLY RATES). BORROWER AGREES AND CONSENTS
THAT VENUE AND JURISDICTION SHALL BE PROPER IN THE CIRCUIT COURT OF ANY COUNTY
OF THE STATE OF MARYLAND OR OF BALTIMORE CITY, MARYLAND, OR IN THE UNITED STATES
DISTRICT COURT FOR THE DISTRICT OF MARYLAND. BORROWER WAIVES THE BENEFIT OF ANY
AND EVERY STATUTE, ORDINANCE, OR RULE OF COURT WHICH MAY BE LAWFULLY WAIVED
CONFERRING UPON BORROWER ANY RIGHT OR PRIVILEGE OF EXEMPTION, HOMESTEAD RIGHTS,
STAY OF EXECUTION, OR SUPPLEMENTARY PROCEEDINGS, OR OTHER RELIEF FROM THE
ENFORCEMENT OR IMMEDIATE ENFORCEMENT OF A JUDGMENT OR RELATED PROCEEDINGS ON A
JUDGMENT. THE AUTHORITY AND POWER TO APPEAR FOR AND ENTER JUDGMENT AGAINST
BORROWER SHALL NOT BE EXHAUSTED BY ONE OR MORE EXERCISES THEREOF, OR BY ANY
IMPERFECT EXERCISE THEREOF, AND SHALL NOT BE EXTINGUISHED BY ANY JUDGMENT

<PAGE>

ENTERED PURSUANT THERETO; SUCH AUTHORITY AND POWER MAY BE EXERCISED ON ONE OR
MORE OCCASIONS FROM TIME TO TIME, IN THE SAME OR DIFFERENT JURISDICTIONS, AS
OFTEN AS LENDER SHALL DEEM NECESSARY, CONVENIENT, OR PROPER.

                               [SIGNATURES FOLLOW]

<PAGE>

                  IN WITNESS WHEREOF, intending to be legally bound, and
intending that this Loan and Security Agreement constitutes an instrument
executed under seal, the parties have caused this Loan and Security Agreement to
be executed under seal as of the date first written above.

                                    LENDER:

                                    HELLER HEALTHCARE FINANCE, INC.,

                                    a Delaware corporation

                                    By: /s/Joseph Prandoni
                                       ---------------------------------(SEAL)
                                    Name:  Joseph Prandoni
                                    Title: Vice President

                                    BORROWER:

                                    LASERSIGHT INCORPORATED,

                                    a Delaware corporation

                                    By: /s/Gregory L. Wilson
                                       ---------------------------------(SEAL)
                                    Name:  Gregory L. Wilson
                                    Title: Secretary

                                    LASERSIGHT TECHNOLOGIES, INC.,

                                    a Delaware corporation

                                    By: /s/Gregory L. Wilson
                                       ---------------------------------(SEAL)
                                    Name:  Gregory L. Wilson
                                    Title: Secretary

                                    LASERSIGHT CENTERS INCORPORATED,

                                    a Delaware corporation

                                    By: /s/Gregory L. Wilson
                                       ---------------------------------(SEAL)
                                    Name:  Gregory L. Wilson
                                    Title: Treasurer
<PAGE>

                                    LASERSIGHT PATENTS, INC.,

                                    a Delaware corporation

                                    By: /s/Gregory L. Wilson
                                       ---------------------------------(SEAL)
                                    Name:  Gregory L. Wilson
                                    Title: Secretary

                                    PHOTOMED ACQUISITION, INC.,

                                    a Delaware corporation

                                    By: /s/Gregory L. Wilson
                                       ---------------------------------(SEAL)
                                    Name:  Gregory L. Wilson
                                    Title: Secretary

                                    MRF, INC., a Missouri corporation

                                    By: /s/Gregory L. Wilson
                                       ---------------------------------(SEAL)
                                    Name:  Gregory L. Wilson
                                    Title: Secretary

                                    L.S. EXPORT, LTD., a company organized
                                    under the laws of the U.S. Virgin Islands

                                    By: /s/Gregory L. Wilson
                                       ---------------------------------(SEAL)
                                    Name:  Gregory L. Wilson
                                    Title: Treasurer

                                    LST LASER, S.A., a company organized
                                    under the laws of Costa Rica

                                    By: /s/Gregory L. Wilson
                                       ---------------------------------(SEAL)
                                    Name:  Gregory L. Wilson
                                    Title: Treasurer
<PAGE>
                                    LASERSIGHT EUROPE GMBH,  a company
                                    Organized under the laws of Germany

                                    By: /s/Gregory L. Wilson
                                       ---------------------------------(SEAL)
                                    Name:  Gregory L. Wilson
                                    Title: Managing Director

<PAGE>
                                LIST OF SCHEDULES
                                -----------------

Schedule 1.36     -        Permitted Liens

Schedule 4.1      -        Subsidiaries

Schedule 4.5      -        Litigation

Schedule 4.7      -        Tax Identification Numbers

Schedule 4.8      -        Defaults

Schedule 4.9      -        Title to Properties

Schedule 4.13     -        Non-Compliance with Law

Schedule 4.14     -        Environmental Matters

Schedule 4.15     -        Places of Business

Schedule 4.16     -        Licenses

Schedule 4.17     -        Stock Ownership

Schedule 4.19     -        Borrowings and Guarantees

Schedule 4.21     -        Trade Names

Schedule 4.22     -        Joint Ventures

Schedule 7.1      -        Permitted Borrowings

Schedule 7.12     -        Transactions with Affiliates

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