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                                                                    EXHIBIT 10.8

                         EMPLOYEE STOCK OPTION AGREEMENT


         THIS STOCK OPTION AGREEMENT (the "Agreement") is made and entered into
as of the 3rd day of June, 1998, between Opticon Medical Inc. (the "Company")
and William J. Post ("Employee").

                                   WITNESSETH

         WHEREAS, the Company employs Employee as a key member of the Company's
management; and

         WHEREAS, the Company desires to encourage Employee to remain in the
employ of the Company and for the Employee to have a personal interest in the
continued success and progress of the Company; and

         WHEREAS, the Company desires to offer certain compensation to Employee
for satisfactory performance of his duties, including the stock option granted
by this Agreement in addition to other compensation that the Company may give to
Employee pursuant to that certain Employment Agreement, dated as of March 10,
1997, by and between the Company and the Employee (the "Employment Agreement");

         NOW THEREFORE, in consideration of the foregoing and the covenants
contained herein, the Company and Employee agree as follows:

1.       GRANT OF OPTION.

         Subject to the terms and conditions set forth in this Agreement, the
Company hereby grants to Employee the right to purchase up to One Hundred Fifty
Thousand (150,000) shares of the Company's common stock (the "Stock") at a price
of $1.50 per share (the "Option"). It is understood and agreed that the option
price is the per share fair market value of such shares on the date of the
option grant. The Company intends that the Option shall be an Incentive Stock
Option governed by the provisions of Section 422 of the Internal Revenue Code of
1986, as amended (the "Code"). The terms of the Company's Incentive Stock Option
Plan (the "Plan") and the Option shall be interpreted and administered so as to
satisfy the requirements of the Code.

2.       EXERCISE OF PURCHASE RIGHTS.

         (a) Vesting and Exercisability. The Option shall not be exercisable the
first time during any calendar year by Employee except in accordance with
subsection 422(d) of the Code. Furthermore, except as provided in Section 2(b),
Employee may exercise only the portion of the Option which has vested in
accordance with the schedule hereafter set forth. Vesting of the Option shall
occur as follows:


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                  (i) The Option to purchase Twenty-five Thousand (25,000)
         shares of Stock is vested on the date hereof; and

                  (ii) The Option to purchase Twenty-five Thousand (25,000)
         shares of Stock shall vest on the first and second anniversaries
         respectively of the date hereof; and

                  (iii) The Option to purchase Thirty-seven Thousand Five
         Hundred (37,500) shares of Stock shall vest on the third anniversary of
         the date hereof; and

                  (iv) The Option to purchase Thirty-seven Thousand Five Hundred
         (37,500) shares of Stock shall vest on the fourth anniversary of the
         date hereof;

provided, however, that no Option shall vest unless the Employee is, on the date
the Option is scheduled to vest, an employee of the Company.

         (b) Acceleration of Exercisability. Notwithstanding the provisions of
Section 2(a), the Option shall vest completely and may be exercised in full upon
(i) Employee's termination of employment with the Company due to the Employee's
death, disability or termination by the Company of Employee's employment without
"cause" (as defined in the Employment Agreement) or (ii) a change of control of
the Company. For purposes of this Agreement, "change of control" shall mean (a)
any merger of the Company with another entity and in which the Company is not
the surviving entity; (b) a consolidation of the Company with another entity;
(c) the sale of all or substantially all of the assets of the Company in a
transaction or series of transactions other than in the normal course of
business; or (d) any purchase or transaction or series of purchases or
transactions after the conclusion of which a person, group of persons or entity
beneficially owns more than twenty percent (20%) of the outstanding securities
of any class of securities of the Company entitled to vote; provided that this
subdivision (d) shall not be applicable in the case of any purchase(s) or
transaction(s) effected by either (1) a person, group of persons or entity who
or which currently controls more than twenty percent (20%) of any class of
outstanding securities of the Company or (2) an employee benefit plan of the
Company.

         (c) Method of Exercise. Any portion of the Option which has vested and
is exercisable may be exercised, in whole or in part, by delivery by Employee to
the Company of written notice of such exercise, accompanied by full payment of
(i) the purchase price with respect to that portion of the Option being exercise
and (ii) any amounts required to be withheld pursuant to applicable income tax
laws in connection with such exercise. Until the Company notifies Employee to
the contrary, the form attached to this Agreement as EXHIBIT A shall be used to
exercise the Option. Upon the exercise of the Option and tender of the purchase
price, the Company shall deliver to the Employee a certificate or certificates
representing the number of shares of Stock being purchased by Employee, free and
clear of encumbrances.

         The aggregate purchase price for the shares of Stock to be issued upon
exercise of an Option shall be paid (i) in cash, (ii) by certified check, (iii)
by delivery of duly endorsed certificates representing shares of Stock having a
fair market value on the date of exercise aggregating at least the portion of
the purchase price being paid by delivery of such shares, (iv)



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in a combination of cash and Stock, or (v) by such other lawful consideration as
the administrator of the Plan may approve. To the extent necessary to avoid
adverse financial accounting consequences to the Company associated with the use
of Stock to pay the purchase price upon exercise of the Option and except as the
Board of Directors of the Company (the "Board") may otherwise consent, no shares
of Stock acquired under this Agreement or pursuant to any employee benefit plan
or program of the Company may be used to pay any portion of the purchase price
upon exercise of the Option unless those shares shall have been held for a
period of not less than six months prior to the date of exercise. For purposes
of this Agreement, the fair market value of a share of Stock shall be determined
by the Board pursuant to a reasonable method adopted in good faith for such
purpose.

         (d) Restriction Upon Shares of Stock Issued Upon Exercise. At the time
of the issuance of any shares of Stock upon exercise of the Option, Employee
will, upon the request of the Company, agree in writing that he is acquiring
such shares for investment only and not with a view to resale, and that he will
not sell, pledge or otherwise dispose of such shares so issued unless and until
(i) the Company is furnished with an opinion of counsel to the effect that
registration of such shares pursuant to the Securities Act of 1933, as amended
(the "Securities Act"), is not required by the Securities Act and the rules and
regulations thereunder and any applicable state securities laws; or (ii) such
registration or notification as is, in the opinion of counsel for the Company,
required for the lawful disposition of such shares has been filed by the Company
and has become effective; provided however, that the Company is not obligated to
file any such registration or notification. Employee further agrees that the
Company may place a legend embodying such restriction on the certificate(s)
evidencing such shares.

         (e) Expiration of Option. To the extent that the Option has not been
exercised, this Agreement shall terminate and be of no further force and effect,
and the Option shall expire, on the earlier of (i) three (3) months after
termination of Employee's employment with the Company for any reason except the
death or disability of the Employee or Employee's employment is terminated for
cause, (ii) thirty-six (36) months after termination of Employee's employment
because of the Employee's death or disability, (iii) at the time the Employee's
employment is terminated if such termination is for cause, or (iv) the tenth
(10th) anniversary of the date of the grant of the Option.

3. ADJUSTMENT UPON CHANGES IN CAPITALIZATION.

         The type and number of shares of Stock subject to the Option and the
purchase price per share shall be adjusted as the Board reasonably deems
appropriate to preserve the value of the Option in the event of a stock
dividend, stock split or reverse stock split, recapitalization, merger,
consolidation, reorganization, cash or property dividend (including without
limitation a dividend payable in shares of stock of any subsidiary of Company),
exchange of shares, repurchase of shares or any other change in corporate
structure of or by Company that in any such event materially affects the
outstanding shares of Stock.

4. NO RIGHTS AS STOCKHOLDER.



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         Employee shall have no rights as a stockholder with respect to any
shares of Stock subject to the Option until and unless a certificate or
certificates representing such shares are issued to Employee pursuant to Section
2(c) of this Agreement. Except as provided in Section 3, no adjustment shall be
made for dividends or other rights for which the record date is prior to the
issuance of such certificate or certificates.

5. EMPLOYMENT.

         Neither the granting of the Option evidenced by this Agreement nor any
term or provision of this Agreement shall constitute or be evidence of any
understanding, express or implied, on the part of Company to employ Employee for
any period of time.

6. NONTRANSFERABILITY.

         Employee's rights under this Agreement are not transferable by Employee
other than by will or in accordance with the laws of descent and distribution,
and are exercisable, during Employee's lifetime, only by Employee or, during his
disability, by his legal representative, and, after Employee's death, by his
estate, heirs or devisees and their successors and assigns.

7. MISCELLANEOUS.

         (a) Headings. The headings in this Agreement are inserted for
convenience only and shall have no significance in the interpretation of this
Agreement.

         (b) Entire Agreement. This Agreement contains the entire agreement
between the parties with respect to the transactions contemplated under this
Agreement, supersedes all prior arrangements or understandings with respect to
those transactions, written or oral and does not alter the terms of the
Employment Agreement. No agreements or representations, oral or otherwise,
expressed or implied, with respect to the subject matter of this Agreement have
been made by either party which are not set forth expressly in this Agreement.

         (c) Successors. The terms and conditions of this Agreement shall be
binding and inure to the benefits of the parties to this Agreement and their
respective heirs, personal representative and successors.

         (d) Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of Iowa applicable to agreements made and
entirely to be performed within such jurisdiction except to the extent federal
law may be applicable.

         (e) Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall be deemed to be an original and all of which
together shall constitute one and the same instrument.

         (f) Disposal of Shares. If Employee shall dispose of any of the shares
of Stock acquired upon exercise of the Option within two (2) years from the date
the Option was granted or within one (1) year after the date of exercise of the
Option, then, in order to provide the



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Company with the opportunity to claim the benefit of any income tax deduction,
Employee shall promptly notify the Company of the dates of acquisition and
disposition of such shares, the number of shares so disposed of, and the
consideration, if any, received for such shares.

         IN WITNESS WHEREOF, each of the parties to this Agreement has executed
this Agreement as of the day and year first written above.

                                      OPTICON MEDICAL INC. ("Company")



                                      By  /s/ Walter Sembrowich
                                          ------------------------------------
                                          Walter Sembrowich
                                          Chairman of the Board


                                      /s/ William J. Post
                                      ----------------------------------------
                                      William J. Post ("Employee")



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                                    EXHIBIT A

                                 OPTION EXERCISE

                   (To be signed only upon exercise of option)


         The undersigned, the holder of the foregoing stock option, hereby
irrevocably elects to exercise the purchase right represented by such option
for, and to purchase thereunder, ______ of the shares of Common Stock of Opticon
Medical Inc., to which such warrant relates and herewith makes payment of
$_________ therefor in cash or by check and requests that the certificates for
such shares be issued in the name of, and be delivered to
_______________________ whose address is set forth below the signature of the
undersigned.

Dated: _____________


                                   __________________________________
                                   [Signature]



                                   __________________________________


                                   __________________________________
                                   [Address]



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