Document:

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                                                                     Exhibit 4.2

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED ("1933 ACT"), OR ANY STATE SECURITIES LAWS AND SHALL NOT
BE SOLD, PLEDGED, HYPOTHECATED, DONATED, OR OTHERWISE TRANSFERRED, WHETHER OR
NOT FOR CONSIDERATION, BY THE HOLDER EXCEPT UPON THE ISSUANCE TO THE COMPANY OF
A FAVORABLE OPINION OF ITS COUNSEL OR THE SUBMISSION TO THE COMPANY OF SUCH
OTHER EVIDENCE AS MAY BE SATISFACTORY TO COUNSEL FOR THE COMPANY, IN EITHER
CASE, TO THE EFFECT THAT ANY SUCH TRANSFER SHALL NOT BE IN VIOLATION OF THE 1933
ACT AND APPLICABLE STATE SECURITIES LAWS.

                         CALYPTE BIOMEDICAL CORPORATION

                          Common Stock Purchase Warrant
                                       to
                         Purchase ______________ Shares
                                       of
                                  Common Stock

                This Common Stock Purchase Warrant is issued to:

                                     [Name]
                                    [Address]
                                [City, State Zip]

by CALYPTE BIOMEDICAL CORPORATION, a Delaware corporation (hereinafter called
the "Company", which term shall include its successors and assigns).

         FOR VALUE RECEIVED and subject to the terms and conditions hereinafter
set out, the registered holder of this Warrant as set forth on the books and
records of the Company (the "Holder") is entitled upon surrender of this Warrant
to purchase from the Company _____________ fully paid and non-assessable shares
of Common Stock, $.001 par value per share (the "Common Stock"), at the Exercise
Price (as defined below) per share.

         This Warrant shall expire at the close of business on _____________,
2003.
1.       (a) The right to purchase shares of Common Stock represented by this
         Warrant may be exercised by the Holder, in whole or in part, by the
         surrender of this Warrant (properly endorsed if required) at the
         principal office of the Company at 1265 Harbor Parkway, Alameda,
         California 94502 (or such other office or agency of the Company as it
         may designate by notice in writing to the Holder at the address of the
         Holder appearing on the books of the Company), and upon payment to the
         Company, by cash or by certified check or bank draft, of the Exercise
         Price for such shares. The Company agrees that the shares of Common
         Stock so purchased shall be deemed to be issued to the Holder as the
         record owner of such shares of Common Stock as of the close of business

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         on the date on which this Warrant shall have been surrendered and
         payment made for such shares of Common Stock as aforesaid. Certificates
         for the shares of Common Stock so purchased (together with a cash
         adjustment in lieu of any fraction of a share) shall be delivered to
         the Holder within a reasonable time, not exceeding five (5) business
         days, after the rights represented by this Warrant shall have been so
         exercised, and, unless this Warrant has expired, a new Warrant
         representing the number of shares of Common Stock, if any, with respect
         to which this Warrant shall not then have been exercised, in all other
         respects identical with this Warrant, shall also be issued and
         delivered to the Holder within such time, or, at the request of the
         Holder, appropriate notation may be made on this Warrant and the same
         returned to the Holder.

          (b) This Warrant may be exercised to acquire, from and after the date
     hereof, the number of shares of Common Stock set forth on the first page
     hereof (subject to adjustments described in this Warrant); provided,
     however, the right hereunder to purchase such shares of Common Stock shall
     expire at 5:00 p.m. Alameda, California time on _____________, 2003.

     2. This Warrant is being issued by the Company pursuant to the terms of the
Consulting Agreement dated ______________, 2003.

     3. The Company covenants and agrees that all Common Stock upon issuance
against payment in full of the Exercise Price by the Holder pursuant to this
Warrant will be validly issued, fully paid and non-assessable and free from all
taxes, liens and charges with respect to the issue thereof (except to the extent
resulting from the Holder's own circumstances, actions or omissions). The
Company covenants and agrees that during the period within which the rights
represented by this Warrant may be exercised, the Company will have at all times
authorized, and reserved for the purpose of issue or transfer upon exercise of
the rights evidenced by this Warrant, a sufficient number of shares of Common
Stock to provide for the exercise of the rights represented by this Warrant, and
will procure at its sole expense upon each such reservation of shares the
listing thereof (subject to issuance or notice of issuance) on all stock
exchanges on which the Common Stock is then listed or inter-dealer trading
systems on which the Common Stock is then traded. The Company will take all such
action as may be necessary to assure that such shares of Common Stock may be so
issued without violation of any applicable law or regulation, or of any
requirements of any national securities exchange upon which the Common Stock may
be listed or inter-dealer trading system on which the Common Stock is then
traded. The Company will not take any action which would result in any
adjustment in the number of shares of Common Stock purchasable hereunder if the
total number of shares of Common Stock issuable pursuant to the terms of this
Warrant after such action upon full exercise of this Warrant and, together with
all shares of Common Stock then outstanding and all shares of Common Stock then
issuable upon exercise of all options and other rights to purchase shares of
Common Stock then outstanding, would exceed the total number of shares of Common
Stock then authorized by the Company's Restated and Amended Articles of
Incorporation, as then amended.

     4. The Initial Exercise Price is ______ per share of Common Stock ("Initial
Exercise Price"). The Initial Exercise Price shall be adjusted as provided for
below in this Section 4 (the Initial Exercise Price, and the Initial Exercise
Price, as thereafter then adjusted, shall be referred to as the "Exercise
Price") and the Exercise Price from time to time shall be further adjusted as
provided for below in this Section 4. Upon each adjustment of the Exercise
Price, the Holder shall thereafter be entitled to receive upon exercise of this
Warrant, at the Exercise Price resulting from such adjustment, the number of
shares of Common Stock obtained by (i) multiplying the Exercise Price in effect
immediately prior to such adjustment by the number of shares of Common Stock
purchasable hereunder immediately prior to such adjustment, and (ii) dividing
the product thereof by the Exercise Price resulting from such adjustment. The

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Exercise Price shall be adjusted as follows:

          (i) In the case of any amendment to the Company's Articles of
     Incorporation to change the designation of the Common Stock or the rights,
     privileges, restrictions or conditions in respect to the Common Stock or
     division of the Common Stock, this Warrant shall be adjusted so as to
     provide that upon exercise thereof, the Holder shall receive, in lieu of
     each share of Common Stock theretofore issuable upon such exercise, the
     kind and amount of shares, other securities, money and property receivable
     upon such designation, change or division by the Holder issuable upon such
     exercise had the exercise occurred immediately prior to such designation,
     change or division. This Warrant shall be deemed thereafter to provide for
     adjustments, which shall be as nearly equivalent as may be practicable to
     the adjustments provided for in this Section 4. The provisions of this
     Subsection 4(i) shall apply in the same manner to successive
     reclassifications, changes, consolidations and mergers.

          (ii) If the Company shall at any time subdivide its outstanding shares
     of Common Stock into a greater number of shares of Common Stock, or declare
     a dividend or make any other distribution upon the Common Stock payable in
     shares of Common Stock, the Exercise Price in effect immediately prior to
     such subdivision or dividend or other distribution shall be proportionately
     reduced, and conversely, in case the outstanding shares of Common Stock
     shall be combined into a smaller number of shares of Common Stock, the
     Exercise Price in effect immediately prior to such combination shall be
     proportionately increased.

          (iii) If any capital reorganization or reclassification of the capital
     stock of the Company, or any consolidation or merger of the Company with or
     into another corporation or other entity, or the sale of all or
     substantially all of the Company's assets to another corporation or other
     entity shall be effected in such a way that holders of shares of Common
     Stock shall be entitled to receive stock, securities, other evidence of
     equity ownership or assets with respect to or in exchange for shares of
     Common Stock, then, as a condition of such reorganization,
     reclassification, consolidation, merger or sale (except as otherwise
     provided below in this Section 4), lawful and adequate provisions shall be
     made whereby the Holder shall thereafter have the right to receive upon the
     exercise hereof upon the basis and upon the terms and conditions specified
     herein, such shares of stock, securities, other evidence of equity
     ownership or assets as may be issued or payable with respect to or in
     exchange for a number of outstanding shares of such Common Stock equal to
     the number of shares of Common Stock immediately theretofore purchasable
     and receivable upon the exercise of this Warrant under this Section 4 had
     such reorganization, reclassification, consolidation, merger or sale not
     taken place, and in any such case appropriate provisions shall be made with
     respect to the rights and interests of the Holder to the end that the
     provisions hereof (including, without limitation, provisions for
     adjustments of the Exercise Price and of the number of shares of Common
     Stock receivable upon the exercise of this Warrant) shall thereafter be
     applicable, as nearly as may be, in relation to any shares of stock,
     securities, other evidence of equity ownership or assets thereafter
     deliverable upon the exercise hereof (including an immediate adjustment, by
     reason of such consolidation or merger, of the Exercise Price to the value
     for the Common Stock reflected by the terms of such consolidation or merger

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     if the value so reflected is less than the Exercise Price in effect
     immediately prior to such consolidation or merger). Subject to the terms of
     this Warrant, in the event of a merger or consolidation of the Company with
     or into another corporation or other entity as a result of which the number
     of shares of common stock of the surviving corporation or other entity
     issuable to holders of Common Stock, is greater or lesser than the number
     of shares of Common Stock outstanding immediately prior to such merger or
     consolidation, then the Exercise Price in effect immediately prior to such
     merger or consolidation shall be adjusted in the same manner as though
     there were a subdivision or combination of the outstanding shares of Common
     Stock. The Company shall not effect any such consolidation, merger or sale,
     unless, prior to the consummation thereof, the successor corporation (if
     other than the Company) resulting from such consolidation or merger or the
     corporation purchasing such assets shall assume by written instrument
     executed and mailed or delivered to the Holder, the obligation to deliver
     to the Holder such shares of stock, securities, other evidence of equity
     ownership or assets as, in accordance with the foregoing provisions, the
     Holder may be entitled to receive or otherwise acquire. If a purchase,
     tender or exchange offer is made to and accepted by the holders of more
     than fifty (50%) percent of the outstanding shares of Common Stock, the
     Company shall not effect any consolidation, merger or sale with the person
     having made such offer or with any affiliate of such person, unless prior
     to the consummation of such consolidation, merger or sale the Holder of
     this Warrant shall have been given a reasonable opportunity to then elect
     to receive upon the exercise of this Warrant the amount of stock,
     securities, other evidence of equity ownership or assets then issuable with
     respect to the number of shares of Common Stock in accordance with such
     offer.

          (iv) In case the Company shall, at any time prior to exercise of this
     Warrant, consolidate or merge with any other corporation or other entity
     (where the Company is not the surviving entity) or transfer all or
     substantially all of its assets to any other corporation or other entity,
     then the Company shall, as a condition precedent to such transaction, cause
     effective provision to be made so that the Holder of this Warrant upon the
     exercise of this Warrant after the effective date of such transaction shall
     be entitled to receive the kind and amount of shares, evidences of
     indebtedness and/or other securities or property receivable on such
     transaction by a holder of the number of shares of Common Stock as to which
     this Warrant was exercisable immediately prior to such transaction (without
     giving effect to any restriction upon such exercise); and, in any such
     case, appropriate provision shall be made with respect to the rights and
     interest of the Holder of this Warrant to the end that the provisions of
     this Warrant shall thereafter be applicable (as nearly as may be
     practicable) with respect to any shares, evidences of indebtedness or other
     securities or assets thereafter deliverable upon exercise of this Warrant.
     Upon the occurrence of any event described in this Section 4(iv), the
     holder of this Warrant shall have the right to (i) exercise this Warrant
     immediately prior to such event at an Exercise Price equal to lesser of (1)
     the then Exercise Price or (2) the price per share of Common Stock paid in
     such event, or (ii) retain ownership of this Warrant, in which event,
     appropriate provisions shall be made so that the Warrant shall be
     exercisable at the Holder's option into shares of stock, securities or
     other equity ownership of the surviving or acquiring entity.

                  Whenever the Exercise Price shall be adjusted pursuant to this
Section 4, the Company shall issue a certificate signed by its President or Vice
President and by its Treasurer, Assistant Treasurer, Secretary or Assistant
Secretary, setting forth, in reasonable detail, the event requiring the
adjustment, the amount of the adjustment, the method by which such adjustment
was calculated (including a description of the basis on which the Board of
Directors of the Company made any determination hereunder), and the Exercise
Price after giving effect to such adjustment, and shall cause copies of such
certificates to be mailed (by first-class mail, postage prepaid) to the Holder
of this Warrant. The Company shall make such certificate and mail it to the
Holder promptly after each adjustment.

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                  No fractional shares of Common Stock shall be issued in
connection with any exercise of this Warrant, but in lieu of such fractional
shares, the Company shall make a cash payment therefore equal in amount to the
product of the applicable fraction multiplied by the Exercise Price then in
effect.

     5. In the event the Company grants rights (other than rights granted
pursuant to a shareholder rights or poison pill plan) to all shareholders to
purchase Common Stock, the Holder shall have the same rights as if this Warrant
had been exercised immediately prior to such grant.

     6. The shares of Common Stock issuable upon the exercise of this Warrant
shall be registered by the Company pursuant to a Form S-8 to be filed with the
Securities and Exchange Commission on or prior to May 23, 2003.

     7. This Warrant need not be changed because of any change in the Exercise
Price or in the number of shares of Common Stock purchased hereunder.

     8. The terms defined in this paragraph, whenever used in this Warrant,
shall, unless the context otherwise requires, have the respective meanings
hereinafter specified. The term "Common Stock" shall mean and include the
Company's Common Stock, $.001 par value per share, authorized on the date of the
original issue of this Warrant and shall also include in case of any
reorganization, reclassification, consolidation, merger or sale of assets of the
character referred to in Section 4 hereof, the stock, securities or assets
provided for in such paragraph. The term "Company" shall also include any
successor corporation to Calypte Biomedical Corporation by merger, consolidation
or otherwise. The term "outstanding" when used with reference to Common Stock
shall mean at any date as of which the number of shares thereof is to be
determined, all issued shares of Common Stock, except shares then owned or held
by or for the account of the Company. The term "1933 Act" shall mean the
Securities Act of 1933, as amended, or any successor Federal statute, and the
rules and regulations of the Securities and Exchange Commission, or any other
Federal agency then administering the 1933 Act, there-under, all as the same
shall be in effect at the time.

     9. This Warrant is exchangeable, upon the surrender hereby by the Holder at
the office or agency of the Company, for new Warrants of like tenor representing
in the aggregate the right to subscribe for and purchase the number of shares of
Common Stock which may be subscribed for and purchased hereunder, each of such
new Warrants to represent the right to subscribe for and purchase such number of
shares of Common Stock as shall be designated by the Holder at the time of such
surrender. Upon receipt of evidence satisfactory to the Company of the loss,
theft, destruction or mutilation of this Warrant or any such new Warrants and,
in the case of any such loss, theft, or destruction, upon delivery of a bond of
indemnity, reasonably satisfactory to the Company, or, in the case of any such
mutilation, upon surrender or cancellation of this Warrant or such new Warrants,
the Company will issue to the Holder a new Warrant of like tenor, in lieu of
this Warrant or such new Warrants, representing the right to subscribe for and
purchase the number of shares of Common Stock which may be subscribed for and
purchased hereunder.

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     10. The Company will at no time close its transfer books against the
transfer of this Warrant or of any shares of Common Stock issued or issuable
upon the exercise of this Warrant in any manner which interferes with the timely
exercise of this Warrant. This Warrant shall not entitle the Holder to any
voting rights or any rights as a shareholder of the Company. The rights and
obligations of the Company, of the Holder, and of any holder of shares of Common
Stock issuable hereunder, shall survive the exercise of this Warrant.

     11. This Warrant sets forth the entire agreement of the Company and the
Holder of the Common Stock issuable upon the exercise of this Warrant with
respect to the rights of the Holder and the Common Stock issuable upon the
exercise of this Warrant, notwithstanding the knowledge of such Holder of any
other agreement or the provisions of any agreement, whether or not known to the
Holder, and the Company represents that there are no agreements inconsistent
with the terms hereof or which purport in any way to bind the Holder of this
Warrant or the Common Stock.

     12. The validity, interpretation and performance of this Warrant and each
of its terms and provisions shall be governed by the laws of the State of
California.

         IN WITNESS WHEREOF, the Company has caused this Warrant to be signed by
its duly authorized officer under its corporate seal and dated as of May __,
2003.

CALYPTE BIOMEDICAL CORPORATION

By:

Name: Richard D. Brounstein
Title: Executive Vice President and CFO

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                          FORM OF ELECTION TO PURCHASE

(To be executed by the Holder to exercise the right to purchase shares of Common
Stock under the Warrant to which this form applies, issued by Calypte Biomedical
Corporation ("CALYPTE"))

To Calypte Biomedical Corporation:

         The undersigned hereby irrevocably elects to purchase _____________
shares of common stock, $0.001 par value per share, of Calypte (the "COMMON
STOCK") and, if such Holder is not utilizing the cashless exercise provisions
set forth in this Warrant, encloses herewith $________ in cash, certified or
official bank check or checks, which sum represents the aggregate Exercise Price
(as defined in the Warrant) for the number of shares of Common Stock to which
this Form of Election to Purchase relates, together with any applicable taxes
payable by the undersigned pursuant to the Warrant.

         The undersigned requests that certificates for the shares of Common
Stock issuable upon this exercise be issued in the name of

                                  PLEASE INSERT SOCIAL SECURITY OR
                                  TAX IDENTIFICATION NUMBER

                                   -------------------------------------

            --------------------------------------------------------
                         (Please print name and address)

Dated:            ,                     Name of Holder:
      ------------  -----

                                            (Print)
                                                   ---------------------------

                                            (By:)
                                                   ----------------------------
                                            (Name:)
                                            (Title:)
                                            (Signature  must  conform in all
                                             respects to name of holder as
                                             specified on the face of the
                                             Warrant)

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                               FORM OF ASSIGNMENT

[To be completed and signed only upon transfer of Warrant]

         FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers
unto ________________________________ the right represented by the within
Warrant to purchase ____________ shares of Common Stock of Calypte Biomedical
Corporation to which the within Warrant relates and appoints ________________
attorney to transfer said right on the books of Calypte Biomedical Corporation
with full power of substitution in the premises.

Dated:

---------------, ----

                                  ---------------------------------------
                                  (Signature  must  conform in all respects
                                   to name of holder as specified on the
                                   face of the Warrant)

                                  ---------------------------------------
                                  Address of Transferee

                                  ---------------------------------------

                                  ---------------------------------------

In the presence of:

--------------------------

                                       52

<PAGE><PAGE>

Exhibit 10.1

                               SEVERANCE AGREEMENT
                               -------------------

         THIS SEVERANCE  AGREEMENT (the  "Agreement") is entered into as of this
11th day of April 2003, between NexGen Vision, Inc., a Delaware corporation (the
"Company") and Hermann Burckhardt (the "Employee").

         WHEREAS,  in its  business,  the Company  has  acquired  and  developed
certain trade  secrets,  including but not limited to  proprietary  processes of
manufacturing,  design  information and drawings,  sales methods and techniques,
and other like confidential business and technical information including but not
limited  to  engineering  or  technical  information,  design  systems,  pricing
methods,  pricing rates or discounts,  process,  procedure,  formula,  design of
computer  software,  or  improvement,  or any portion or phase thereof,  whether
patented or  unpatentable,  that is of any value  whatsoever to the Company,  as
well as certain unpatented  information relating to the manufacture or servicing
of the Company's products,  information concerning proposed new products, market
feasibility studies, proposed or existing marketing techniques or plans (whether
developed  or produced by the Company or by any other  entity for the  Company),
and (ii) confidential business information,  i.e., any data or information other
than trade  secrets that is of any value or  significance  to the Company and is
not generally  known to  competitors  of the Company nor intended by the Company
for general dissemination,  including but not limited to future company business
plans, project files, design systems, lists of the Company' current or potential
customers,  current or potential vendors,  prospective leads or target accounts,
the  identity of various  suppliers/vendors  of products and  services,  pricing
schedules,  pricing methods,  information  about the purchasing  preferences and
practices of customers,  information as to the  profitability  of specific sales
and/or  specific  products,  and  information  about  the  Company'  executives,
officers, and directors,  which necessarily will be communicated to the Employee
by reason of his employment by the Company;

         WHEREAS,  the Company has strong and legitimate  business  interests in
preserving and  protecting its investment in its trade secrets and  confidential
business information,  and its substantial  relationships with vendors, existing
customers, and prospective customers; and

         WHEREAS,  the Company  desires to preserve  and protect its  legitimate
business interests further by restricting competitive activities of the Employee
during the Term, as defined in this  Agreement,  and following (for a reasonable
time) termination of this Agreement.

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
covenants set forth in this  Agreement,  and intending to be legally bound,  the
Company and the Employee agree as follows:

1.  REPRESENTATION AND WARRANTY OF THE EMPLOYEE.  The Employee hereby represents
and  warrants  to  the  Company  that  he  does  not  possess  any  Confidential
Information,  as defined in this  Agreement,  in  written,  electronic  or other
format.

2. RESIGNATION, TERM, SEVERANCE PAYMENTS, ETC.

         (a) Resignation.  Concurrent with execution hereof by the parties,  the
Employee resigns as an officer,  director and employee of the Company and any of
its subsidiaries.  The Employee acknowledges and agrees with the Company that as

<PAGE>

a result of his resignation as a director,  the Company is not obligated to file
a Form 8-K with the Securities and Exchange Commission.

         (b)  Severance  Payments.  Through  March 31,  2004 (the  "Term"),  the
Company shall continue to pay the Employee all of the  compensation and benefits
contained in the Employment Agreement between the Company and the Employee dated
November 6, 2001 (the  "Employment  Agreement") as if the Employee were still an
employee (the "Severance  Payments").  All payments shall be made as provided in
the  Employment  Agreement.  The Employee  shall have no right or  obligation to
perform any services, and the payments shall be considered severance payments.

         (c) Filing suit. If during the Term,  the Employee files or encourages,
induces,  or causes anyone else to file a lawsuit  against the Company or any of
its  officers  or  directors,  for any reason  other  than (i) to  enforce  this
Agreement,  or (ii) under or to enforce the Stockholders' Voting Agreement dated
April 11, 2003,  among the Employee,  Gary Lafferty and Alberto  Burckhardt (the
"Stockholders'  Voting Agreement") then the obligation to pay Severance Payments
shall cease and no further Severance Payments shall be due.

         (d) Termination of the Employment Agreement. Except as provided in this
Agreement, the Employment Agreement is terminated and null and void and no party
shall have any rights or liabilities under the Employment Agreement.

         (e)  Continuing  Effect.   Notwithstanding   any  termination  of  this
Agreement  at the end of the Term or  otherwise,  the  provisions  of Sections 3
through 10 of this Agreement shall remain in full force and effect.

         (f) Trading on Inside  Information.  The Employee  acknowledges that he
has in the past had access to information  concerning the Company's business and
financial condition that is material and not public.  Accordingly,  the Employee
agrees to not purchase or sell any of the  Company's  capital stock on the basis
of such material non-public information through the filing of the Company's Form
10-QSB for the quarter ended March 31, 2003 (or such earlier date as approved by
Michael  D.Harris,  Esq. of West Palm Beach,  Florida) . After the filing of the
Form 10-QSB,  the Company  agrees that the Employee shall not have access to any
material,  non-public information,  and he shall not be subject to the Company's
pre-clearance procedures. The parties agree that during the Term and Restrictive
Period as defined in this Agreement,  such securities  counsel of the Company is
and will continue to be Michael D. Harris, Esq

<PAGE>

3.  COMMUNICATIONS;  DISPARAGEMENT.  From the date of this Agreement through the
expiration of two years from the last severance  payment required to be made for
in Section 2(b) (the "Restrictive Period"), neither party shall communicate with
anyone concerning the other or their respective officers, directors,  employees,
,  commercial  bankers,   representatives  or  successors  in  any  negative  or
disparaging manner or with respect to material non-public  information.,  except
with Messrs.  Gary Lafferty and Michael D. Harris on behalf of the Company,  and
any lawyer  representing the Employee on behalf of him. Provided,  however,  the
Employee may engage in personal  communications with his son, Alberto Burckhardt
which do not relate to the  Company  and he may have  communications  with third
parties  concerning  Alberto  Burckhardt  in any  capacity  outside  of  Alberto
Burckhardt's relationship with the Company.

4. NON-COMPETITION AGREEMENT.

         (a) Competition with the Company.  During the Restrictive  Period,  the
Employee,  directly or indirectly or, in  association  with or as a stockholder,
director,  officer,  consultant,  employee,  partner, joint venturer,  member or
otherwise of or through any person, firm, corporation,  partnership, association
or other entity (any of the foregoing  defined as an "Affiliated  Entity") shall
not  manufacture,  market or sell ophthalmic lens casting  machines,  ophthalmic
lenses or any  components  or supplies  used in the  manufacture  of  ophthalmic
lenses  (collectively  the  "Products")  within the United  States or Australia.
Provided,  however, the foregoing provisions shall not prevent the Employee from
accepting  employment  with  an  enterprise  engaged  in two or  more  lines  of
business,  one of which is the same or similar to the  Company's  business  (the
"Prohibited  Business") if the Employee's employment is totally unrelated to the
Prohibited  Business;  provided,  further,  the  foregoing  shall  not  prohibit
Employee  from  owning  up  to 5%  of  the  securities  of  any  publicly-traded
enterprise  engaged in the Prohibited  Business  provided the Employee is not an
employee,   director,  officer,  consultant  to  such  enterprise  or  otherwise
reimbursed for services rendered to such enterprise.  In addition,  the Employee
may not, directly or indirectly including through any Affiliated Entity,  obtain
employment with or perform services for any Customer, as defined, of the Company
during the Restrictive Period.

         (b)  Solicitation  of Customers.  During the  Restrictive  Period,  the
Employee,  directly or indirectly including through any Affiliated Entity, shall
not seek  Prohibited  Business from any Customer (as defined below) on behalf of
any enterprise or business  other than the Company,  refer  Prohibited  Business
from any  Customer  to any  enterprise  or  business  other than the  Company or
receive  commissions  based on sales or  otherwise  relating  to the  Prohibited
Business from any Customer, or any enterprise or business other than the Company
.. For purposes of this Agreement,  the term "Customer"  means any person,  firm,
corporation,  partnership, association or other entity to which the Company sold
or provided  goods or services  during the 24-month  period prior to the time at
which any  determination  is required to be made as to whether any such  person,
firm,  corporation,  partnership,  association or other entity is a Customer, or
who or which has been  approached by or who or which has  approached an employee
of the Company for the purpose of  soliciting  business  from the Company or the
third party, as the case may be.

         (c)  Solicitation  of Employees.  During the  Restrictive  Period,  the
Employee,  directly or indirectly  including through any Affiliated Entity shall
not  solicit,  hire or contact  any  employee  of the Company for the purpose of
hiring them or causing them to terminate their employment  relationship with the
Company.

<PAGE>

         (d) No Payment.  The Employee  acknowledges and agrees that no separate
or additional payment will be required to be made to him in consideration of his
undertakings in this Section 4.

         (e)  References  to the  Company in this  Section 4 shall  include  the
Company's  Affiliates.  For purposes of this  Agreement,  the word  "Affiliates"
shall include all persons or entities controlled by or under common control with
the Company or the Employee, as the case may be.

5. NON-DISCLOSURE OF CONFIDENTIAL INFORMATION.

         (a) Confidential Information. Confidential Information includes, but is
not  limited  to,  trade  secrets  (as  defined by the common law and statute in
Georgia or  Delaware  or any future  Georgia or  Delaware  statute),  processes,
policies,  procedures,  techniques  including  recruiting  techniques,  designs,
drawings, know-how, show-how,  technical information,  specifications,  computer
software  and source code,  information  and data  relating to the  development,
research,  testing,  costs,  marketing and uses of the  Products,  the Company's
budgets and  strategic  plans,  and the identity and special needs of Customers,
databases,  data, all technology  relating to the Company's  business,  systems,
methods of operation, Customer lists, Customer information,  solicitation leads,
marketing and advertising materials, methods and manuals and forms, all of which
pertain to the  activities or operations of the Company,  names,  home addresses
and all  telephone  numbers and e-mail  addresses  of the  Company's  employees,
former  employees,  clients  and  former  clients.  In  addition,   Confidential
Information  also  includes the  identity of  Customers  and the identity of and
telephone  numbers,  e-mail addresses and other addresses of employees or agents
of Customers  who are the persons with whom the  Company's  employees and agents
communicate in the ordinary course of business.  For purposes of this Agreement,
the following will not constitute Confidential Information (i) information which
is or subsequently  becomes generally  available to the public through no act of
the Employee,  (ii) information set forth in the written records of the Employee
prior to  disclosure  to the  Employee  by or on  behalf  of the  Company  which
information  is given to the  Company  in  writing as of or prior to the date of
this Agreement, and (iii) information which is lawfully obtained by the Employee
in writing from a third party (excluding any Affiliates of the Employee) who did
not  acquire  such  confidential   information  or  trade  secret,  directly  or
indirectly, from the Employee or the Company.

         (b) Legitimate  Business  Interests.  The Employee  recognizes that the
Company has legitimate  business interests to protect and as a consequence,  the
Employee  agrees to the  restrictions  contained in this Agreement  because they
further the Company's  legitimate business interests.  These legitimate business
interests  include,  but are not  limited to (i) trade  secrets;  (ii)  valuable
confidential  business  or  professional  information  that  otherwise  does not
qualify  as  trade  secrets  including  all  Confidential   Information;   (iii)
substantial  relationships with specific prospective or existing Customers; (iv)
Customer goodwill  associated with the Company's  business;  and (v) specialized
training relating to the Company's Products, technology, methods and procedures.

         (c)  Confidentiality.  During the  Restrictive  Period or as  otherwise
required by any more  liberal  confidentiality  agreement  of the  Company,  the
Confidential  Information  shall  be  held  by the  Employee  in  the  strictest
confidence and shall not,  without the prior written consent of the Company,  be
disclosed to any person other than in connection with the Employee's  employment
by the  Company.  The  Employee  further  acknowledges  that  such  Confidential
Information  as is acquired  and used by the Company is a special,  valuable and
unique  asset.  The Employee  shall  exercise all due diligence  precautions  to

<PAGE>

protect the integrity of the Company's  Confidential  Information and to keep it
confidential  whether it is in written form, on  electronic  media or oral.  All
records,  files,  materials and other Confidential  Information  obtained by the
Employee in the course of his employment with the Company are  confidential  and
proprietary  and shall  remain  the  exclusive  property  of the  Company or its
Customers, as the case may be. The Employee shall not for any reason use for his
own  benefit  or the  benefit  of any  person  or  entity  with  which he may be
associated or disclose any such  Confidential  Information to any person,  firm,
corporation, association or other entity for any reason or purpose.

         (d)  References  to the  Company in this  Section 5 shall  include  the
Company's Affiliates.

6. EQUITABLE RELIEF.

         (a) The  Company  and the  Employee  recognize  that  the  relationship
between them previously was of a special, unique and of extraordinary character,
that the severance payments required by Section 2(b) provide the Employee with a
benefit  to which he is not  entitled  and that in the  event of the  breach  by
either of them of the terms and  conditions of this Agreement or if the Employee
for any reason takes any action in violation of Sections 3, 4 and/or  Section 5,
or if the Company for any reason takes any action in violation of Section 3, the
aggrieved party, shall be entitled to institute and prosecute proceedings in any
court of competent jurisdiction referred to in Section 6(b) below, to enjoin the
other party from breaching the provisions of Sections 3, 4 or 5, as the case may
be. In such action,  the aggrieved party shall not be required to plead or prove
irreparable  harm  or lack of an  adequate  remedy  at law or post a bond or any
security.

         (b) Any action must be commenced in Fulton  County,  Georgia  where the
Company's  principal  offices will be located and where the Company will pay the
Employee   the   compensation   hereunder.    The   Employee   irrevocably   and
unconditionally  submits to the exclusive jurisdiction of such courts and agrees
to take any and all future  action  necessary to submit to the  jurisdiction  of
such courts.  The Employee  irrevocably  waives any objection that he now has or
may have  hereafter  to the  laying of venue of any suit,  action or  proceeding
brought in any such court and further irrevocably waives any claim that any such
suit,  action or  proceeding  brought in any such  court has been  brought in an
inconvenient  forum.  Final judgment without further right of appeal against the
Employee  in any such suit  shall be  conclusive  and may be  enforced  in other
jurisdictions  by suit on the judgment,  a certified or true copy of which shall
be  conclusive  evidence  of the fact and the  amount  of any  liability  of the
Employee therein described,  or by appropriate  proceedings under any applicable
treaty or otherwise.

7.  RIGHT OF FIRST  PURCHASE.  For a period of one year from the date  beginning
April 11,  2003,  the  Employee  shall not offer or sell any Class A or B Common
Stock (the "Securities") of the Company unless he first offers the Securities to
Jesup & Lamont  Securities  Corp., a market maker in the Securities,  or if that
firm is no longer a market maker in the  Securities or engaged in the securities
business,  then another broker-dealer,  which is a market maker, selected by the
Company  (any a  "Broker").  The Broker shall have the right to purchase for its
account  all or  part  of the  Securities  offered  which  Securities  shall  be
purchased directly from another broker-dealer.  On any day when the Nasdaq Stock
Market is open for business the Employee or his agent shall give written  notice
to the  Broker of his  intent to  publicly  offer for sale any  Securities.  The
written  notice  shall be in the manner and to the e-mail  address or fax number

<PAGE>

specified  by the Broker in writing to the Employee  (which  notice may be later
changed) at the address  provided in this  Agreement.  Assuming  that the Broker
thereupon  agrees  upon  receipt of the notice by it (not  counting  weekends or
other  days  when the New York  Stock  Exchange  is not open for  trading),  the
Employee  shall sell the number of Securities  specified by the Broker up to the
amount  specified  in the notice  through  or to the  Broker at the price  which
represents  the last best bid price  reported  by the  principal  market for the
Securities immediately prior to the time of the notice (the "Net Price"). If the
Broker does not do so, then the Broker  shall have no rights to purchase for its
account the  Securities  covered by the notice and the Employee shall be free to
publicly offer and sell such  Securities  elsewhere  during the succeeding  five
trading  days (not  counting  weekends  or other  days  when the New York  Stock
Exchange  is not open for  trading).  The  failure  of the Broker on one or more
occasions to purchase the Securities shall not be construed as a waiver.

8.  DELIVERY OF  SECURITIES  AND RELEASE.  The Company has  delivered to Michael
Harris, P.A. a certificate representing 1,806,250 shares of Class B Common Stock
held  by  ARB  Investment  Enterprises,  Ltd.  ("ARB"),  a  limited  partnership
controlled  by  the  Employee  (the  "Certificates").  Upon  execution  of  this
Agreement by all parties, Michael Harris, P.A. shall deliver the Certificates to
the Employee,  together with the written  release of ARB, its corporate  general
partner and its current and past officers and  directors,  and ARB's current and
past  partners or  successors,  from the  "Lenders" as defined in and under that
certain Pledge  Agreement  dated  September 6, 2002, by and between ARB and such
Lenders substantially in the form annexed as Exhibit A.

9. LOCK-UP. During the period beginning on the date of this Agreement and ending
on the earlier of (i) the sale by the Company of $15  million in  securities  or
(ii) July 15, 2003,  the Employee  shall not sell any Securities of the Company,
except that the Employee may publicly sell 10,000 shares of Company Common Stock
during each calendar week,  subject to the restrictions and requirements of Rule
144.

10. DILUTION.

Until the end of the  Restrictive  Period the  Company  agrees  that,  except by
affirmative  vote of the  requisite  number of shares of its capital stock under
Delaware  law,  it will not issue any  additional  shares or take any  corporate
action the result of which  would  cause it to receive or it to issue any shares
at less  than  $1.50  per  share,  subject  to  adjustment  as  provided  in the
Stockholders' Voting Agreement.

11. RELEASES. The Company, its officers, and Jesup & Lamont Securities Corp. and
its officers shall execute a general release releasing the Employee from any and
all  liabilities  that may have arisen through the date of this  Agreement.  The
Employee shall execute a general release releasing the Company,  its Affiliates,
its employees,  its counsel and Jesup & Lamont Securities Corp. and its officers
from  any and all  liabilities  that may have  arisen  through  the date of this
Agreement. Forms of the releases are annexed as Exhibits B and C.

12.  ASSIGNMENT.  The rights and obligations of the Company under this Agreement
shall inure to the benefit of and be binding upon the  successors and assigns of
the Company.  The Company, and its subsidiaries are third party beneficiaries of
the  confidentiality  and  non-compete  agreements.  The Employee's  obligations
hereunder  may not be  assigned  or  alienated  and any  attempt to do so by the
Employee shall be void.

<PAGE>

13. SEVERABILITY.

         (a) The  Employee  expressly  agrees that the  character,  duration and
geographical scope of the non-competition provisions set forth in this Agreement
are reasonable in light of the circumstances,  as they exist on the date hereof.
Should a  decision,  however,  be made at a later  date by a court of  competent
jurisdiction  that  the  character,  duration  or  geographical  scope  of  such
provisions  is  unreasonable,  then it is the intention and the agreement of the
Employee and the Company that this Agreement  shall be construed by the court in
such a manner as to impose only those  restrictions  on the  Employee's  conduct
that are  reasonable in the light of the  circumstances  and as are necessary to
assure to the Company the  benefits of this  Agreement.  If, in any  judicial or
arbitration  proceeding,  a court shall  refuse to enforce  all of the  separate
covenants  deemed  included  herein  because,  taken  together,  they  are  more
extensive than necessary to assure to the Company the intended  benefits of this
Agreement,  it is expressly understood and agreed by the parties hereto that the
provisions of this  Agreement  that, if  eliminated,  would permit the remaining
separate   provisions  to  be  enforced  in  such  proceeding  shall  be  deemed
eliminated, for the purposes of such proceeding, from this Agreement.

         (b) If any  provision  of this  Agreement  otherwise  is  deemed  to be
invalid  or  unenforceable  or is  prohibited  by  the  laws  of  the  state  or
jurisdiction  where it is to be performed,  this  Agreement  shall be considered
divisible as to such provision and such  provision  shall be inoperative in such
state or  jurisdiction  and shall not be part of the  consideration  moving from
either of the parties to the other.  The remaining  provisions of this Agreement
shall be valid and binding and of like effect as though such  provision were not
included.

14. NOTICES AND ADDRESSES.  All notices,  offers,  acceptance and any other acts
under  this  Agreement  (except  payment)  shall  be in  writing,  and  shall be
sufficiently  given if delivered to the addressees in person, by Federal Express
or similar  receipted  delivery,  by facsimile  delivery or, if mailed,  postage
prepaid, by certified mail, return receipt requested, as follows:

To the Company:                     NexGen Vision, Inc.
                                             1535 Oak Industrial Lane
                                             Suite F
                                             Cumming, GA  30041
                                             Facsimile:  (770) 781-8498

         With a Copy to:            Michael D. Harris, Esq.
                                             Harris & Gilbert, LLP
                                             1555 Palm Beach Lakes Blvd.
                                             Suite 310
                                             West Palm Beach, Florida 33401
                                             Facsimile:  (561) 478-1817

To the Employee:                    Hermann Burckhardt
                                             9796 N.W. 51st Terrace
                                             Miami, Florida 33178
                                             Facsimile:  (786) 331-3575

         With a Copy to:            Gerald L. Fishman
                                             Wolin & Rosen, Ltd.
                                             55 West Monroe Street
                                             Suite 3600
                                             Chicago, Illinois 60603
                                             Facsimile:  (312) 424-0660

<PAGE>

or to such other address as either of them, by notice to the other may designate
from time to time.  The  transmission  confirmation  receipt  from the  sender's
facsimile machine shall be conclusive evidence of successful facsimile delivery.
Time shall be counted to, or from, as the case may be, the delivery in person or
by mailing.

15.  COUNTERPARTS.  This Agreement may be executed in one or more  counterparts,
each of which  shall be  deemed  an  original  but all of which  together  shall
constitute one and the same  instrument.  The execution of this Agreement may be
by actual or facsimile signature.

16.  ARBITRATION.  Except for an action for equitable  relief,  any controversy,
dispute  or  claim  arising  out  of or  relating  to  this  Agreement,  or  its
interpretation,  application,  implementation,  breach or enforcement  which the
parties  are  unable  to  resolve  by  mutual  agreement,  shall be  settled  by
submission  by either  party of the  controversy,  claim or  dispute  to binding
arbitration in Atlanta, Georgia (unless the parties mutually agree in writing to
a different location),  before three arbitrators in accordance with the rules of
the American  Arbitration  Association  then in effect.  In any such arbitration
proceeding  the parties agree to provide all discovery  deemed  necessary by the
arbitrators.  The  decision  and award made by the  arbitrators  shall be final,
binding and conclusive on all parties hereto for all purposes,  and judgment may
be entered thereon in any court having jurisdiction thereof.

17. ATTORNEY'S FEES.

         (a) In the event that there is any  controversy or claim arising out of
or relating to this Agreement,  or to the interpretation,  breach or enforcement
thereof,  and any action or proceeding is commenced to enforce the provisions of
this  Agreement,  the  prevailing  party  shall  be  entitled  to  a  reasonable
attorney's fee, costs and expenses.

         (b) The Company agrees to pay the fees and costs of Employee's counsel,
in connection with the drafting, negotiation, execution and consummation of this
Agreement  and  the  Stockholders'   Voting  Agreement,   up  to  $3,000,   upon
presentation of an invoice  therefor.  The Employee shall be responsible for any
such fees or costs in excess of $3,000.

18.  GOVERNING  LAW. This Agreement and any dispute,  disagreement,  or issue of
construction  or  interpretation  arising  hereunder  whether  relating  to  its
execution,  its validity,  the obligations provided therein or performance shall
be  governed  or  interpreted  according  to the  internal  laws of the State of
Delaware  where the  Company  is  incorporated  without  regard to choice of law
considerations.

19. ENTIRE  AGREEMENT.  This Agreement  constitutes the entire Agreement between
the  parties  and  supersedes  all  prior or  contemporaneous  oral and  written
agreements between the parties hereto with respect to the subject matter hereof.
Neither  this  Agreement  nor  any  provision  hereof  may be  changed,  waived,
discharged or  terminated,  except by a statement in writing signed by the party
against which  enforcement  or the change,  waiver,  discharge or termination is
sought.

<PAGE>

20.  ADDITIONAL  DOCUMENTS.  The parties  hereto shall  execute such  additional
instruments as may be reasonably required by their counsel in order to carry out
the purpose and intent of this  Agreement and to fulfill the  obligations of the
parties hereunder.

21. SECTION AND PARAGRAPH  HEADINGS.  The section and paragraph headings in this
Agreement  are for  reference  purposes only and shall not affect the meaning or
interpretation of this Agreement.

         IN WITNESS  WHEREOF,  the Company and the Employee  have  executed this
Agreement as of the date and year first above written.

________________________        NexGen Vision, Inc.

________________________        By: /s/ Gary Lafferty
                                   -----------------------------------------
                                   Gary Lafferty, Chief Executive Officer

________________________        Employee:

________________________        /s/ Hermann Burckhardt
                                --------------------------------------------
                                Hermann Burckhardt

<PAGE>

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