Document:

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                                                                   EXHIBIT 10.10

                              CONSULTING AGREEMENT

            THIS AGREEMENT (the "Agreement") is made by and between OccuLogix
Corporation, a Florida Corporation (the "OccuLogix"), and Dipl. Ing. Hans K.
Stock, an individual living in Germany ("Stock").

            WHEREAS, Stock seeks to assist OccuLogix in procuring a license (the
"License") to US patent 6,245,038 issued June 12, 2001 (the "Patent") from Prof.
Dr. Helmut Borberg and or Prof. Dr. Richard Brunner, both individuals living in
Germany and both listed as inventors in provisional US patent application
60/034,909 (the "Inventors") which is the parent and domestic-priority
application of US letters patent 6,245,038 issued June 12, 2001, and

            WHEREAS, OccuLogix desires to acquire the License to the Patent and
requests Stock's assistance in procuring said License.

            NOW THEREFORE, in consideration for the Retainer and Consulting
Payments as described below, and other good and valuable consideration, the
Parties enter into this Consulting Agreement in accordance with the terms set
forth below.

1.    Representation by Stock. Stock warrants that he is a natural person living
      in Germany who, along with Prof. Dr. Richard Brunner and Prof. Dr. Helmut
      Borberg, is listed as an inventor in provisional US patent application
      60/034,909 which is the parent and domestic-priority application of US
      letters patent 6,245,038 issued June 12, 2001.

2.    Representation by OccuLogix. OccuLogix represents that it is a bona fide
      corporation in good standing in Florida.

3.    Patent Rights. Shall mean any and all of the rights, title, ownership and
      interests in and to US letters patent 6,245,038 and any and all
      inventions, modifications, continuations-in-part, extensions, divisions,
      improvements, etc., in any and all areas that relate directly to the
      Patent, regardless of whether such inventions or improvements are
      patentable or may become patented; It is expressly agreed that any and all
      such inventions, modifications, continuations-in-part, extensions,
      divisions, improvements, etc. shall automatically be incorporated herein
      without the payment of any additional fees, royalties or any other
      compensation or considerations of any kind.

4.    Consulting Retainer Payments. OccuLogix agrees to pay Stock Fifty Thousand
      Dollars ($50,000 USD) annually as an advance and credited against any and
      all Consulting Payments paid in accordance with this License. Such
      Consulting Retainer Payments shall be paid to Stock in equal payments of
      Twelve Thousand Five-hundred Dollars ($12,500 USD), made quarterly, on or
      before the expiration of Forty-five (45) days after the reporting close of
      each prior calendar quarter. The initial payment of Twelve Thousand
      Five-hundred Dollars ($12,500 USD) shall be due and payable within
      Forty-five (45) Days of the Effective Date herein.

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                                      -2-

5.    Consulting Payments. OccuLogix agrees to pay Stock a total of One Percent
      (1.0% USD) of Total Net Revenues that OccuLogix receives from the bona
      fide commercial sales of its Products sold in reliance and dependence upon
      the validity of the Patent's claims and of the Patent Rights in the
      Territory. All payments due hereunder shall continue until the termination
      of the Agreement, to Stock, his assigns, heirs, or otherwise; even in the
      event of Stock's death.

6.    Accounting and Timing of Royalty Payments. Upon making each Royalty
      Payment, Licensee shall provide Stock with a summary of the accounting
      used to determine the amount of Royalty Payment due. Royalty Payments
      shall be made by wire transfer and shall be computed on Total Net Revenues
      received by the Licensee by the reporting close of each calendar quarter
      and distributed and paid to Stock and on a quarterly basis, on or before
      the expiration of Forty-five (45) days after the reporting close of each
      prior calendar quarter.

7.    Territory. Shall mean the United States and any other jurisdictions
      subject to recognizing any valid claims of the Patent or of the Patent
      Rights.

8.    Total Net Revenues. shall mean total gross revenues less any discounts,
      rebates, shipping costs, handling costs, transportation insurance costs,
      importation fees, and duties on any and all Products sold by the Licensee
      in the Territory and which are sold in reliance upon and specifically used
      in accordance with or subject to any of the valid claims of the Patent.

9.    Records. OccuLogix agrees to keep complete and correct books, accounts and
      records according to Generally Accepted Accounting Principles (GAAP)
      regulations to facilitate computation of Royalty Payments. Stock, or his
      representatives acceptable to OccuLogix, shall have a full right of
      accounting including the right to confidentially examine OccuLogix's books
      and records, at all reasonable times and upon reasonable notice, for the
      purpose of verifying the amount of Royalty Payments due.

10.   Products. Shall mean any of the Licensee's products, goods or technologies
      sold to unaffiliated third parties in the Territory for the purposes of
      providing extracorporeal therapies for the treatment of the opthalmic
      diseases as defined by any valid claim(s) of the Patent. In this case,
      Licensee's sale of extracorporeal filters and tubing sets for use in any
      and all opthalmic indications.

11.   Term. The Royalty Payments shall be due to Stock beginning with the first
      bona fide commercial sale of any Product in the Territory and shall
      terminate upon the first of any of the following three events to occur: a)
      All patents of the Patent Rights expire, b) All patent claims of the
      Patent Rights are invalidated, or c) A similarly fashioned competitive
      extracorporeal product, method or technology is commercially introduced in
      the Territory for use in opthalmic indications that could not be deterred
      by best-efforts enforcement/infringement proceedings brought by Licensee
      against the competitive product, method or technology where such
      proceedings are made in reliance in full or in part upon the Patent's
      claims and or the Patent Rights.

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                                      -3-

12.   Relationship of the Parties; Indemnification. It is agreed that this
      Agreement does not make either Party herein a general or special agent,
      legal representative, subsidiary, joint venturer, partner, employee or
      servant of the other Party herein for any purpose.

13.   Breach and Disputes. Any breaching Party shall have Thirty (30) Days from
      the date of notification to cure such breach. Any dispute between the
      Parties to this Agreement shall be resolved through binding arbitration,
      which shall be governed under the rules and regulations of the American
      Arbitration Association.

14.   Forum, Venue and Governing Law. This Agreement shall be governed and
      interpreted under Delaware law (without applying its conflict of law
      principles). Exclusive venue for legal proceedings arising hereunder shall
      be in Hillsborough County, Florida.

15.   Entire Agreement. This Agreement supersedes any prior understanding that
      may have been reached between the Parties and encompasses the entire
      agreement between the Parties with respect to the Patent and the Patent
      Rights. The terms of this Agreement are confidential and shall be
      maintained by the Parties in accordance thereby.

16.   Modification. This Agreement cannot be modified except in writing executed
      mutually between the Parties.

            IN WITNESS WHEREOF, the Parties have signed and executed this
Agreement and have caused this Agreement to become effective as of the Effective
Date last executed below.

OCCULOGIX CORPORATION                          DIPL. ING. HANS K. STOCK

By:___________________________                 _________________________________

Title:________________________

Date:_________________________                 Date:____________________________<PAGE>

                                                                   EXHIBIT 10.11

                          VASCULAR SCIENCES CORPORATION
                             2002 STOCK OPTION PLAN

     1.  ESTABLISHMENT, PURPOSE AND TERM OF PLAN.

         1.1 ESTABLISHMENT. The Vascular Sciences Corporation 2002 Stock Option
Plan (the "PLAN") is hereby established effective as of the effective date of
the Delaware reincorporation of OccuLogix Corporation (the predecessor
corporation to the Company) (the "EFFECTIVE DATE").

         1.2 PURPOSE. The purpose of the Plan is to advance the interests of
the Participating Company Group and its stockholders by providing an incentive
to attract, retain and reward persons performing services for the Participating
Company Group and by motivating such persons to contribute to the growth and
profitability of the Participating Company Group.

         1.3 TERM OF PLAN. The Plan shall continue in effect until the earlier
of its termination by the Board or the date on which all of the shares of Stock
available for issuance under the Plan have been issued and all restrictions on
such shares under the terms of the Plan and the agreements evidencing Options
granted under the Plan have lapsed. However, all Options shall be granted, if at
all, within ten (10) years from the earlier of the date the Plan is adopted by
the Board or the date the Plan is duly approved by the stockholders of the
Company.

     2.  DEFINITIONS AND CONSTRUCTION.

         2.1 DEFINITIONS. Whenever used herein, the following terms shall have
their respective meanings set forth below:

              (a) "BOARD" means the Board of Directors of the Company. If one or
more Committees have been appointed by the Board to administer the Plan, "BOARD"
also means such Committee(s).

              (b) "CODE" means the Internal Revenue Code of 1986, as amended,
and any applicable regulations promulgated thereunder.

              (c) "COMMITTEE" means the Compensation Committee or other
committee of the Board duly appointed to administer the Plan and having such
powers as shall be specified by the Board. Unless the powers of the Committee
have been specifically limited, the Committee shall have all of the powers of
the Board granted herein, including, without limitation, the power to amend or
terminate the Plan at any time, subject to the terms of the Plan and any
applicable limitations imposed by law.

              (d) "COMPANY" means Vascular Sciences Corporation, a Delaware
corporation, or any successor corporation thereto.

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              (e) "CONSULTANT" means a person engaged to provide consulting or
advisory services (other than as an Employee or a Director) to a Participating
Company, provided that the identity of such person, the nature of such services
or the entity to which such services are provided would not preclude the Company
from offering or selling securities to such person pursuant to the Plan in
reliance on either the exemption from registration provided by Rule 701 under
the Securities Act or, if the Company is required to file reports pursuant to
Section 13 or 15(d) of the Exchange Act, registration on a Form S-8 Registration
Statement under the Securities Act.

              (f) "DIRECTOR" means a member of the Board or of the board of
directors of any other Participating Company.

              (g) "DISABILITY" means the inability of the Optionee, in the
opinion of a qualified physician acceptable to the Company, to perform the major
duties of the Optionee's position with the Participating Company Group because
of the sickness or injury of the Optionee.

              (h) "EMPLOYEE" means any person treated as an employee (including
an Officer or a Director who is also treated as an employee) in the records of a
Participating Company and, with respect to any Incentive Stock Option granted to
such person, who is an employee for purposes of Section 422 of the Code;
provided, however, that neither service as a Director nor payment of a
director's fee shall be sufficient to constitute employment for purposes of the
Plan. The Company shall determine in good faith and in the exercise of its
discretion whether an individual has become or has ceased to be an Employee and
the effective date of such individual's employment or termination of employment,
as the case may be. For purposes of an individual's rights, if any, under the
Plan as of the time of the Company's determination, all such determinations by
the Company shall be final, binding and conclusive, notwithstanding that the
Company or any court of law or governmental agency subsequently makes a contrary
determination.

              (i) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

              (j) "FAIR MARKET VALUE" means, as of any date, the value of a
share of Stock or other property as determined by the Board, in its discretion,
or by the Company, in its discretion, if such determination is expressly
allocated to the Company herein, subject to the following:

                   (i) If, on such date, the Stock is listed on a national or
regional securities exchange or market system, the Fair Market Value of a share
of Stock shall be the closing price of a share of Stock (or the mean of the
closing bid and asked prices of a share of Stock if the Stock is so quoted
instead) as quoted on the Nasdaq National Market, The Nasdaq SmallCap Market or
such other national or regional securities exchange or market system
constituting the primary market for the Stock, as reported in The Wall Street
Journal or such other source as the Company deems reliable. If the relevant date
does not fall on a day on which the Stock has traded on such securities exchange
or market system, the date on which the Fair

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Market Value shall be established shall be the last day on which the Stock was
so traded prior to the relevant date, or such other appropriate day as shall be
determined by the Board, in its discretion.

                   (ii) If, on such date, the Stock is not listed on a national
or regional securities exchange or market system, the Fair Market Value of a
share of Stock shall be as determined by the Board in good faith without regard
to any restriction other than a restriction which, by its terms, will never
lapse.

              (k) "INCENTIVE STOCK OPTION" means an Option intended to be (as
set forth in the Option Agreement) and which qualifies as an incentive stock
option within the meaning of Section 422(b) of the Code.

              (l) "INSIDER" means an Officer, a Director of the Company or other
person whose transactions in Stock are subject to Section 16 of the Exchange
Act.

              (m) "NONSTATUTORY STOCK OPTION" means an Option not intended to be
(as set forth in the Option Agreement) or which does not qualify as an Incentive
Stock Option.

              (n) "OFFICER" means any person designated by the Board as an
officer of the Company.

              (o) "OPTION" means a right to purchase Stock pursuant to the terms
and conditions of the Plan. An Option may be either an Incentive Stock Option or
a Nonstatutory Stock Option.

              (p) "OPTION AGREEMENT" means a written agreement between the
Company and an Optionee setting forth the terms, conditions and restrictions of
the Option granted to the Optionee and any shares acquired upon the exercise
thereof. An Option Agreement may consist of a form of "Notice of Grant of Stock
Option" and a form of "Stock Option Agreement" incorporated therein by
reference, or such other form or forms as the Board may approve from time to
time.

              (q) "OPTIONEE" means a person who has been granted one or more
Options.

              (r) "PARENT CORPORATION" means any present or future "parent
corporation" of the Company, as defined in Section 424(e) of the Code.

              (s) "PARTICIPATING COMPANY" means the Company or any Parent
Corporation or Subsidiary Corporation.

              (t) "PARTICIPATING COMPANY GROUP" means, at any point in time, all
corporations collectively which are then Participating Companies.

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              (u) "PRIOR PLAN OPTIONS" means, any option granted pursuant to the
OccuLogix Corporation 1997 Stock Option Plan which is outstanding on or after
the date on which the Board adopts the Plan or which is granted thereafter and
prior to the Effective Date.

              (v) "RULE 16b-3" means Rule 16b-3 under the Exchange Act, as
amended from time to time, or any successor rule or regulation.

              (w) "SECURITIES ACT" means the Securities Act of 1933, as amended.

              (x) "SERVICE" means an Optionee's employment or service with the
Participating Company Group, whether in the capacity of an Employee, a Director
or a Consultant. An Optionee's Service shall not be deemed to have terminated
merely because of a change in the capacity in which the Optionee renders Service
to the Participating Company Group or a change in the Participating Company for
which the Optionee renders such Service, provided that there is no interruption
or termination of the Optionee's Service. Furthermore, an Optionee's Service
with the Participating Company Group shall not be deemed to have terminated if
the Optionee takes any military leave, sick leave, or other bona fide leave of
absence approved by the Company; provided, however, that if any such leave
exceeds ninety (90) days, on the ninety-first (91st) day of such leave the
Optionee's Service shall be deemed to have terminated unless the Optionee's
right to return to Service with the Participating Company Group is guaranteed by
statute or contract. Notwithstanding the foregoing, unless otherwise designated
by the Company or required by law, a leave of absence shall not be treated as
Service for purposes of determining vesting under the Optionee's Option
Agreement. The Optionee's Service shall be deemed to have terminated either upon
an actual termination of Service or upon the corporation for which the Optionee
performs Service ceasing to be a Participating Company. Subject to the
foregoing, the Company, in its discretion, shall determine whether the
Optionee's Service has terminated and the effective date of such termination.

              (y) "STOCK" means the common stock of the Company, as adjusted
from time to time in accordance with Section 4.2.

              (z) "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code.

              (aa) "TEN PERCENT OWNER OPTIONEE" means an Optionee who, at the
time an Option is granted to the Optionee, owns stock possessing more than ten
percent (10%) of the total combined voting power of all classes of stock of a
Participating Company within the meaning of Section 422(b)(6) of the Code.

         2.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of the Plan. Except when otherwise indicated by the context, the
singular shall include the plural and the plural shall include the singular. Use
of the term "or" is not intended to be exclusive, unless the context clearly
requires otherwise.

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     3.  ADMINISTRATION.

         3.1 ADMINISTRATION BY THE BOARD. The Plan shall be administered by the
Board. All questions of interpretation of the Plan or of any Option shall be
determined by the Board, and such determinations shall be final and binding upon
all persons having an interest in the Plan or such Option.

         3.2 AUTHORITY OF OFFICERS. Any Officer shall have the authority to act
on behalf of the Company with respect to any matter, right, obligation,
determination or election which is the responsibility of or which is allocated
to the Company herein, provided the Officer has apparent authority with respect
to such matter, right, obligation, determination or election.

         3.3 POWERS OF THE BOARD. In addition to any other powers set forth in
the Plan and subject to the provisions of the Plan, the Board shall have the
full and final power and authority, in its discretion:

              (a) to determine the persons to whom, and the time or times at
which, Options shall be granted and the number of shares of Stock to be subject
to each Option;

              (b) to designate Options as Incentive Stock Options or
Nonstatutory Stock Options;

              (c) to determine the Fair Market Value of shares of Stock or other
property;

              (d) to determine the terms, conditions and restrictions applicable
to each Option (which need not be identical) and any shares acquired upon the
exercise thereof, including, without limitation, (i) the exercise price of the
Option, (ii) the method of payment for shares purchased upon the exercise of the
Option, (iii) the method for satisfaction of any tax withholding obligation
arising in connection with the Option or such shares, including by the
withholding or delivery of shares of stock, (iv) the timing, terms and
conditions of the exercisability of the Option or the vesting of any shares
acquired upon the exercise thereof, (v) the time of the expiration of the
Option, (vi) the effect of the Optionee's termination of Service with the
Participating Company Group on any of the foregoing, and (vii) all other terms,
conditions and restrictions applicable to the Option or such shares not
inconsistent with the terms of the Plan;

              (e) to approve one or more forms of Option Agreement;

              (f) to amend, modify, extend, cancel or renew any Option or to
waive any restrictions or conditions applicable to any Option or any shares
acquired upon the exercise thereof;

              (g) to accelerate, continue, extend or defer the exercisability of
any Option or the vesting of any shares acquired upon the exercise thereof,
including with respect to

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the period following an Optionee's termination of Service with the Participating
Company Group;

              (h) to prescribe, amend or rescind rules, guidelines and policies
relating to the Plan, or to adopt supplements to, or alternative versions of,
the Plan, including, without limitation, as the Board deems necessary or
desirable to comply with the laws of, or to accommodate the tax policy or custom
of, foreign jurisdictions whose citizens may be granted Options; and

              (i) to correct any defect, supply any omission or reconcile any
inconsistency in the Plan or any Option Agreement and to make all other
determinations and take such other actions with respect to the Plan or any
Option as the Board may deem advisable to the extent not inconsistent with the
provisions of the Plan or applicable law.

         3.4 ADMINISTRATION WITH RESPECT TO INSIDERS. With respect to
participation by Insiders in the Plan, at any time that any class of equity
security of the Company is registered pursuant to Section 12 of the Exchange
Act, the Plan shall be administered in compliance with the requirements, if any,
of Rule 16b-3.

         3.5 INDEMNIFICATION. In addition to such other rights of
indemnification as they may have as members of the Board or officers or
employees of the Participating Company Group, members of the Board and any
officers or employees of the Participating Company Group to whom authority to
act for the Board or the Company is delegated shall be indemnified by the
Company against all reasonable expenses, including attorneys' fees, actually and
necessarily incurred in connection with the defense of any action, suit or
proceeding, or in connection with any appeal therein, to which they or any of
them may be a party by reason of any action taken or failure to act under or in
connection with the Plan, or any right granted hereunder, and against all
amounts paid by them in settlement thereof (provided such settlement is approved
by independent legal counsel selected by the Company) or paid by them in
satisfaction of a judgment in any such action, suit or proceeding, except in
relation to matters as to which it shall be adjudged in such action, suit or
proceeding that such person is liable for gross negligence, bad faith or
intentional misconduct in duties; provided, however, that within sixty (60) days
after the institution of such action, suit or proceeding, such person shall
offer to the Company, in writing, the opportunity at its own expense to handle
and defend the same.

     4.  SHARES SUBJECT TO PLAN.

         4.1 MAXIMUM NUMBER OF SHARES ISSUABLE. Subject to adjustment as
provided in Section 4.2, the maximum aggregate number of shares of Stock that
may be issued under the Plan shall be Two Million Six Hundred Seventy-Eight
Thousand Nine Hundred and Ninety-Seven (2,678,997). This share reserve shall
consist of authorized but unissued or reacquired shares of Stock or any
combination thereof. However, the share reserve, determined at any time, shall
be reduced by the number of shares subject to Prior Plan Options. If an
outstanding Option, including any Prior Plan Option, for any reason expires or
is terminated or canceled or if shares of Stock are acquired upon the exercise
of an Option, including any Prior Plan Option, subject to a Company repurchase
option and are repurchased by the Company at the

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Optionee's exercise price, the shares of Stock allocable to the unexercised
portion of such Option or Prior Plan Option or such repurchased shares of Stock
shall again be available for issuance under the Plan. However, except as
adjusted pursuant to Section 4.2, in no event shall more than Two Million Six
Hundred Seventy-Eight Thousand Nine Hundred and Ninety-Seven (2,678,997) shares
of Stock be available for issuance pursuant to the exercise of Incentive Stock
Options (the "ISO SHARE ISSUANCE LIMIT"). Notwithstanding the foregoing, at any
such time as the offer and sale of securities pursuant to the Plan is subject to
compliance with Section 260.140.45 of Title 10 of the California Code of
Regulations ("SECTION 260.140.45"), the total number of shares of Stock issuable
upon the exercise of all outstanding Options (together with options outstanding
under any other stock option plan of the Company) and the total number of shares
provided for under any stock bonus or similar plan of the Company shall not
exceed thirty percent (30%) (or such other higher percentage limitation as may
be approved by the stockholders of the Company pursuant to Section 260.140.45)
of the then outstanding shares of the Company as calculated in accordance with
the conditions and exclusions of Section 260.140.45.

         4.2 ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE. In the event of any
stock dividend, stock split, reverse stock split, recapitalization, combination,
reclassification or similar change in the capital structure of the Company,
appropriate adjustments shall be made in the number and class of shares subject
to the Plan and to any outstanding Options, in the ISO Share Issuance Limit set
forth in Section 4.1, and in the exercise price per share of any outstanding
Options. If a majority of the shares which are of the same class as the shares
that are subject to outstanding Options are exchanged for, converted into, or
otherwise become (whether or not pursuant to an Ownership Change Event, as
defined in Section 8.1) shares of another corporation (the "NEW SHARES"), the
Board may unilaterally amend the outstanding Options to provide that such
Options are exercisable for New Shares. In the event of any such amendment, the
number of shares subject to, and the exercise price per share of, the
outstanding Options shall be adjusted in a fair and equitable manner as
determined by the Board, in its discretion. Notwithstanding the foregoing, any
fractional share resulting from an adjustment pursuant to this Section 4.2 shall
be rounded down to the nearest whole number, and in no event may the exercise
price of any Option be decreased to an amount less than the par value, if any,
of the stock subject to the Option. The adjustments determined by the Board
pursuant to this Section 4.2 shall be final, binding and conclusive.

     5.  ELIGIBILITY AND OPTION LIMITATIONS.

         5.1 PERSONS ELIGIBLE FOR OPTIONS. Options may be granted only to
Employees, Consultants, and Directors. For purposes of the foregoing sentence,
"Employees," "Consultants" and "Directors" shall include prospective Employees,
prospective Consultants and prospective Directors to whom Options are granted in
connection with written offers of an employment or other service relationship
with the Participating Company Group. Eligible persons may be granted more than
one (1) Option. However, eligibility in accordance with this Section shall not
entitle any person to be granted an Option, or, having been granted an Option,
to be granted an additional Option.

         5.2 OPTION GRANT RESTRICTIONS. Any person who is not an Employee on the
effective date of the grant of an Option to such person may be granted only a
Nonstatutory Stock

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Option. An Incentive Stock Option granted to a prospective Employee upon the
condition that such person become an Employee shall be deemed granted effective
on the date such person commences Service with a Participating Company, with an
exercise price determined as of such date in accordance with Section 6.1.

         5.3 FAIR MARKET VALUE LIMITATION. To the extent that options designated
as Incentive Stock Options (granted under all stock option plans of the
Participating Company Group, including the Plan) become exercisable by an
Optionee for the first time during any calendar year for stock having a Fair
Market Value greater than One Hundred Thousand Dollars ($100,000), the portions
of such options which exceed such amount shall be treated as Nonstatutory Stock
Options. For purposes of this Section 5.3, options designated as Incentive Stock
Options shall be taken into account in the order in which they were granted, and
the Fair Market Value of stock shall be determined as of the time the option
with respect to such stock is granted. If the Code is amended to provide for a
different limitation from that set forth in this Section 5.3, such different
limitation shall be deemed incorporated herein effective as of the date and with
respect to such Options as required or permitted by such amendment to the Code.
If an Option is treated as an Incentive Stock Option in part and as a
Nonstatutory Stock Option in part by reason of the limitation set forth in this
Section 5.3, the Optionee may designate which portion of such Option the
Optionee is exercising. In the absence of such designation, the Optionee shall
be deemed to have exercised the Incentive Stock Option portion of the Option
first. Separate certificates representing each such portion shall be issued upon
the exercise of the Option.

     6.  TERMS AND CONDITIONS OF OPTIONS.

         Options shall be evidenced by Option Agreements specifying the number
of shares of Stock covered thereby, in such form as the Board shall from time to
time establish. No Option or purported Option shall be a valid and binding
obligation of the Company unless evidenced by a fully executed Option Agreement.
Option Agreements may incorporate all or any of the terms of the Plan by
reference and shall comply with and be subject to the following terms and
conditions:

         6.1 EXERCISE PRICE. The exercise price for each Option shall be
established in the discretion of the Board; provided, however, that (a) the
exercise price per share for an Incentive Stock Option shall be not less than
the Fair Market Value of a share of Stock on the effective date of grant of the
Option, (b) the exercise price per share for a Nonstatutory Stock Option shall
be not less than eighty-five percent (85%) of the Fair Market Value of a share
of Stock on the effective date of grant of the Option, and (c) no Option granted
to a Ten Percent Owner Optionee shall have an exercise price per share less than
one hundred ten percent (110%) of the Fair Market Value of a share of Stock on
the effective date of grant of the Option. Notwithstanding the foregoing, an
Option (whether an Incentive Stock Option or a Nonstatutory Stock Option) may be
granted with an exercise price lower than the minimum exercise price set forth
above if such Option is granted pursuant to an assumption or substitution for
another option in a manner qualifying under the provisions of Section 424(a) of
the Code.

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         6.2 EXERCISABILITY AND TERM OF OPTIONS. Options shall be exercisable at
such time or times, or upon such event or events, and subject to such terms,
conditions, performance criteria and restrictions as shall be determined by the
Board and set forth in the Option Agreement evidencing such Option; provided,
however, that (a) no Option shall be exercisable after the expiration of ten
(10) years after the effective date of grant of such Option, (b) no Incentive
Stock Option granted to a Ten Percent Owner Optionee shall be exercisable after
the expiration of five (5) years after the effective date of grant of such
Option, (c) no Option granted to a prospective Employee, prospective Consultant
or prospective Director may become exercisable prior to the date on which such
person commences Service with a Participating Company, and (d) with the
exception of an Option granted to an Officer, a Director or a Consultant, no
Option shall become exercisable at a rate less than twenty percent (20%) per
year over a period of five (5) years from the effective date of grant of such
Option, subject to the Optionee's continued Service. Subject to the foregoing,
unless otherwise specified by the Board in the grant of an Option, any Option
granted hereunder shall terminate ten (10) years after the effective date of
grant of the Option, unless earlier terminated in accordance with its
provisions.

         6.3 PAYMENT OF EXERCISE PRICE.

              (a) FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the exercise price for the number of shares of Stock
being purchased pursuant to any Option shall be made (i) in cash, by check or
cash equivalent, (ii) by tender to the Company, or attestation to the ownership,
of shares of Stock owned by the Optionee having a Fair Market Value not less
than the exercise price, (iii) by delivery of a properly executed notice
together with irrevocable instructions to a broker providing for the assignment
to the Company of the proceeds of a sale or loan with respect to some or all of
the shares being acquired upon the exercise of the Option (including, without
limitation, through an exercise complying with the provisions of Regulation T as
promulgated from time to time by the Board of Governors of the Federal Reserve
System) (a "CASHLESS EXERCISE"), (iv) provided that the Optionee is an Employee
(unless otherwise not prohibited by law, including, without limitation, any
regulation promulgated by the Board of Governors of the Federal Reserve System)
and in the Company's sole discretion at the time the Option is exercised, by
delivery of the Optionee's promissory note in a form approved by the Company for
the aggregate exercise price, provided that, if the Company is incorporated in
the State of Delaware, the Optionee shall pay in cash that portion of the
aggregate exercise price not less than the par value of the shares being
acquired, (v) by such other consideration as may be approved by the Board from
time to time to the extent permitted by applicable law, or (vi) by any
combination thereof. The Board may at any time or from time to time, by approval
of or by amendment to the standard forms of Option Agreement described in
Section 7, or by other means, grant Options which do not permit all of the
foregoing forms of consideration to be used in payment of the exercise price or
which otherwise restrict one or more forms of consideration.

              (b) LIMITATIONS ON FORMS OF CONSIDERATION.

                   (i) TENDER OF STOCK. Notwithstanding the foregoing, an Option
may not be exercised by tender to the Company, or attestation to the ownership,
of shares of Stock to the extent such tender or attestation would constitute a
violation of the provisions of

                                       9

<PAGE>

any law, regulation or agreement restricting the redemption of the Company's
stock. Unless otherwise provided by the Board, an Option may not be exercised by
tender to the Company, or attestation to the ownership, of shares of Stock
unless such shares either have been owned by the Optionee for more than six (6)
months (and not used for another Option exercise by attestation during such
period) or were not acquired, directly or indirectly, from the Company.

                   (ii) CASHLESS EXERCISE. The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to establish,
decline to approve or terminate any program or procedures for the exercise of
Options by means of a Cashless Exercise.

                   (iii) PAYMENT BY PROMISSORY NOTE. No promissory note shall be
permitted if the exercise of an Option using a promissory note would be a
violation of any law. Any permitted promissory note shall be on such terms as
the Board shall determine. The Board shall have the authority to permit or
require the Optionee to secure any promissory note used to exercise an Option
with the shares of Stock acquired upon the exercise of the Option or with other
collateral acceptable to the Company. Unless otherwise provided by the Board, if
the Company at any time is subject to the regulations promulgated by the Board
of Governors of the Federal Reserve System or any other governmental entity
affecting the extension of credit in connection with the Company's securities,
any promissory note shall comply with such applicable regulations, and the
Optionee shall pay the unpaid principal and accrued interest, if any, to the
extent necessary to comply with such applicable regulations.

         6.4 TAX WITHHOLDING. The Company shall have the right, but not the
obligation, to deduct from the shares of Stock issuable upon the exercise of an
Option, or to accept from the Optionee the tender of, a number of whole shares
of Stock having a Fair Market Value, as determined by the Company, equal to all
or any part of the federal, state, local and foreign taxes, if any, required by
law to be withheld by the Participating Company Group with respect to such
Option or the shares acquired upon the exercise thereof. Alternatively or in
addition, in its discretion, the Company shall have the right to require the
Optionee, through payroll withholding, cash payment or otherwise, including by
means of a Cashless Exercise, to make adequate provision for any such tax
withholding obligations of the Participating Company Group arising in connection
with the Option or the shares acquired upon the exercise thereof. The Fair
Market Value of any shares of Stock withheld or tendered to satisfy any such tax
withholding obligations shall not exceed the amount determined by the applicable
minimum statutory withholding rates. The Company shall have no obligation to
deliver shares of Stock or to release shares of Stock from an escrow established
pursuant to the Option Agreement until the Participating Company Group's tax
withholding obligations have been satisfied by the Optionee.

         6.5 REPURCHASE RIGHTS. Shares issued under the Plan may be subject to a
right of first refusal, one or more repurchase options, or other conditions and
restrictions as determined by the Board in its discretion at the time the Option
is granted. The Company shall have the right to assign at any time any
repurchase right it may have, whether or not such right is then exercisable, to
one or more persons as may be selected by the Company. Upon request by the
Company, each Optionee shall execute any agreement evidencing such transfer
restrictions prior to the receipt of shares of Stock hereunder and shall
promptly present to the Company any

                                       10

<PAGE>

and all certificates representing shares of Stock acquired hereunder for the
placement on such certificates of appropriate legends evidencing any such
transfer restrictions.

         6.6 EFFECT OF TERMINATION OF SERVICE.

              (a) OPTION EXERCISABILITY. Subject to earlier termination of the
Option as otherwise provided herein and unless otherwise provided by the Board
in the grant of an Option and set forth in the Option Agreement, an Option shall
be exercisable after an Optionee's termination of Service only during the
applicable time period determined in accordance with this Section 6.6 and
thereafter shall terminate:

                   (i) DISABILITY. If the Optionee's Service terminates because
of the Disability of the Optionee, the Option, to the extent unexercised and
exercisable on the date on which the Optionee's Service terminated, may be
exercised by the Optionee (or the Optionee's guardian or legal representative)
at any time prior to the expiration of twelve (12) months (or such longer period
of time as determined by the Board, in its discretion) after the date on which
the Optionee's Service terminated, but in any event no later than the date of
expiration of the Option's term as set forth in the Option Agreement evidencing
such Option (the "OPTION EXPIRATION DATE").

                   (ii) DEATH. If the Optionee's Service terminates because of
the death of the Optionee, the Option, to the extent unexercised and exercisable
on the date on which the Optionee's Service terminated, may be exercised by the
Optionee's legal representative or other person who acquired the right to
exercise the Option by reason of the Optionee's death at any time prior to the
expiration of twelve (12) months (or such longer period of time as determined by
the Board, in its discretion) after the date on which the Optionee's Service
terminated, but in any event no later than the Option Expiration Date. The
Optionee's Service shall be deemed to have terminated on account of death if the
Optionee dies within three (3) months (or such longer period of time as
determined by the Board, in its discretion) after the Optionee's termination of
Service.

                   (iii) OTHER TERMINATION OF SERVICE. If the Optionee's Service
terminates for any reason, except Disability or death, the Option, to the extent
unexercised and exercisable by the Optionee on the date on which the Optionee's
Service terminated, may be exercised by the Optionee at any time prior to the
expiration of three (3) months (or such longer period of time as determined by
the Board, in its discretion) after the date on which the Optionee's Service
terminated, but in any event no later than the Option Expiration Date.

              (b) EXTENSION IF EXERCISE PREVENTED BY LAW. Notwithstanding the
foregoing, if the exercise of an Option within the applicable time periods set
forth in Section 6.6(a) is prevented by the provisions of Section 10 below, the
Option shall remain exercisable until three (3) months (or such longer period of
time as determined by the Board, in its discretion) after the date the Optionee
is notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.

                                       11

<PAGE>

             (c) EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b). Notwithstanding
the foregoing, if a sale within the applicable time periods set forth in Section
6.6(a) of shares acquired upon the exercise of the Option would subject the
Optionee to suit under Section 16(b) of the Exchange Act, the Option shall
remain exercisable until the earliest to occur of (i) the tenth (10th) day
following the date on which a sale of such shares by the Optionee would no
longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day
after the Optionee's termination of Service, or (iii) the Option Expiration
Date.

         6.7 TRANSFERABILITY OF OPTIONS. During the lifetime of the Optionee, an
Option shall be exercisable only by the Optionee or the Optionee's guardian or
legal representative. No Option shall be assignable or transferable by the
Optionee, except by will or by the laws of descent and distribution.
Notwithstanding the foregoing, to the extent permitted by the Board, in its
discretion, and set forth in the Option Agreement evidencing such Option, a
Nonstatutory Stock Option shall be assignable or transferable subject to the
applicable limitations, if any, described in Section 260.140.41 of Title 10 of
the California Code of Regulations, Rule 701 under the Securities Act, and the
General Instructions to Form S-8 Registration Statement under the Securities
Act.

     7.  STANDARD FORMS OF OPTION AGREEMENT.

         7.1 OPTION AGREEMENT. Unless otherwise provided by the Board at the
time the Option is granted, an Option shall comply with and be subject to the
terms and conditions set forth in the form of Option Agreement approved by the
Board concurrently with its adoption of the Plan and as amended from time to
time.

         7.2 AUTHORITY TO VARY TERMS. The Board shall have the authority from
time to time to vary the terms of any standard form of Option Agreement
described in this Section 7 either in connection with the grant or amendment of
an individual Option or in connection with the authorization of a new standard
form or forms; provided, however, that the terms and conditions of any such new,
revised or amended standard form or forms of Option Agreement are not
inconsistent with the terms of the Plan.

     8.  CHANGE IN CONTROL.

         8.1 DEFINITIONS.

              (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred
if any of the following occurs with respect to the Company: (i) the direct or
indirect sale or exchange in a single or series of related transactions by the
stockholders of the Company of more than fifty percent (50%) of the voting stock
of the Company; (ii) a merger or consolidation in which the Company is a party;
(iii) the sale, exchange, or transfer of all or substantially all of the assets
of the Company; or (iv) a liquidation or dissolution of the Company.

              (b) A "CHANGE IN CONTROL" shall mean an Ownership Change Event or
a series of related Ownership Change Events (collectively, a "TRANSACTION")
wherein the stockholders of the Company immediately before the Transaction do
not retain immediately after

                                       12

<PAGE>

the Transaction, in substantially the same proportions as their ownership of
shares of the Company's voting stock immediately before the Transaction, direct
or indirect beneficial ownership of more than fifty percent (50%) of the total
combined voting power of the outstanding voting securities of the Company or, in
the case of a Transaction described in Section 8.1(a)(iii), the corporation or
other business entity to which the assets of the Company were transferred (the
"TRANSFEREE"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting securities of one or more corporations or
other business entities which own the Company or the Transferee, as the case may
be, either directly or through one or more subsidiary corporations or other
business entities. The Board shall have the right to determine whether multiple
sales or exchanges of the voting securities of the Company or multiple Ownership
Change Events are related, and its determination shall be final, binding and
conclusive.

         8.2 EFFECT OF CHANGE IN CONTROL ON OPTIONS. In the event of a Change in
Control, the surviving, continuing, successor, or purchasing corporation or
other business entity or parent thereof, as the case may be (the "ACQUIRING
CORPORATION"), may, without the consent of the Optionee, either assume the
Company's rights and obligations under outstanding Options or substitute for
outstanding Options substantially equivalent options for the Acquiring
Corporation's stock. Any Options which are neither assumed or substituted for by
the Acquiring Corporation in connection with the Change in Control nor exercised
as of the date of the Change in Control shall terminate and cease to be
outstanding effective as of the date of the Change in Control. Notwithstanding
the foregoing, shares acquired upon exercise of an Option prior to the Change in
Control and any consideration received pursuant to the Change in Control with
respect to such shares shall continue to be subject to all applicable provisions
of the Option Agreement evidencing such Option except as otherwise provided in
such Option Agreement. Furthermore, notwithstanding the foregoing, if the
corporation the stock of which is subject to the outstanding Options immediately
prior to an Ownership Change Event described in Section 8.1(a)(i) constituting a
Change in Control is the surviving or continuing corporation and immediately
after such Ownership Change Event less than fifty percent (50%) of the total
combined voting power of its voting stock is held by another corporation or by
other corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the outstanding Options shall not terminate unless the Board
otherwise provides in its discretion.

     9.  PROVISION OF INFORMATION.

         At least annually, copies of the Company's balance sheet and income
statement for the just completed fiscal year shall be made available to each
Optionee and purchaser of shares of Stock upon the exercise of an Option. The
Company shall not be required to provide such information to key employees whose
duties in connection with the Company assure them access to equivalent
information. Furthermore, the Company shall deliver to each Optionee such
disclosures as are required in accordance with Rule 701 under the Securities
Act.

                                       13

<PAGE>

     10. COMPLIANCE WITH SECURITIES LAW.

         The grant of Options and the issuance of shares of Stock upon exercise
of Options shall be subject to compliance with all applicable requirements of
federal, state and foreign law with respect to such securities. Options may not
be exercised if the issuance of shares of Stock upon exercise would constitute a
violation of any applicable federal, state or foreign securities laws or other
law or regulations or the requirements of any stock exchange or market system
upon which the Stock may then be listed. In addition, no Option may be exercised
unless (a) a registration statement under the Securities Act shall at the time
of exercise of the Option be in effect with respect to the shares issuable upon
exercise of the Option or (b) in the opinion of legal counsel to the Company,
the shares issuable upon exercise of the Option may be issued in accordance with
the terms of an applicable exemption from the registration requirements of the
Securities Act. The inability of the Company to obtain from any regulatory body
having jurisdiction the authority, if any, deemed by the Company's legal counsel
to be necessary to the lawful issuance and sale of any shares hereunder shall
relieve the Company of any liability in respect of the failure to issue or sell
such shares as to which such requisite authority shall not have been obtained.
As a condition to the exercise of any Option, the Company may require the
Optionee to satisfy any qualifications that may be necessary or appropriate, to
evidence compliance with any applicable law or regulation and to make any
representation or warranty with respect thereto as may be requested by the
Company.

     11. TERMINATION OR AMENDMENT OF PLAN.

         The Board may terminate or amend the Plan at any time. However, subject
to changes in applicable law, regulations or rules that would permit otherwise,
without the approval of the Company's stockholders, there shall be (a) no
increase in the maximum aggregate number of shares of Stock that may be issued
under the Plan (except by operation of the provisions of Section 4.2), (b) no
change in the class of persons eligible to receive Incentive Stock Options, and
(c) no other amendment of the Plan that would require approval of the Company's
stockholders under any applicable law, regulation or rule. No termination or
amendment of the Plan shall affect any then outstanding Option unless expressly
provided by the Board. In any event, no termination or amendment of the Plan may
adversely affect any then outstanding Option without the consent of the
Optionee, unless such termination or amendment is required to enable an Option
designated as an Incentive Stock Option to qualify as an Incentive Stock Option
or is necessary to comply with any applicable law, regulation or rule.

     12. STOCKHOLDER APPROVAL.

         The Plan or any increase in the maximum aggregate number of shares of
Stock issuable thereunder as provided in Section 4.1 (the "AUTHORIZED SHARES")
shall be approved by the stockholders of the Company within twelve (12) months
of the date of adoption thereof by the Board. Options granted prior to
stockholder approval of the Plan or in excess of the Authorized Shares
previously approved by the stockholders shall become exercisable no earlier than
the date of stockholder approval of the Plan or such increase in the Authorized
Shares, as the case may be.

                                       14

<PAGE>

                                  PLAN HISTORY

June ___, 2002          Board of Directors of OccuLogix Corporation, a Florida
                        corporation ("OccuLogix") adopts Plan, with an initial
                        reserve of Two Million Six Hundred Seventy-Eight
                        Thousand Nine Hundred and Ninety-Seven (2,678,997)
                        shares. This share reserve includes the number of shares
                        of stock underlying outstanding options and the number
                        of shares available for grant as options under the
                        OccuLogix Corporation 1997 Stock Option Plan. However,
                        this share reserve, at any time, shall be reduced by the
                        number of shares subject to Prior Plan Options.

June ___, 2002          Stockholders of OccuLogix approve Plan, with an initial
                        reserve of Two Million Six Hundred Seventy-Eight
                        Thousand Nine Hundred and Ninety-Seven (2,678,997)
                        shares. This share reserve includes the number of shares
                        of stock underlying outstanding options and the number
                        of shares available for grant as options under the
                        OccuLogix Corporation 1997 Stock Option Plan. However,
                        this share reserve, at any time, shall be reduced by the
                        number of shares subject to Prior Plan Options.

June ___, 2002          Effective date of Delaware reincorporation of OccuLogix.

                                       15

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