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Exhibit 10.20.2    
    

[REFOCUS
GROUP LETTERHEAD] 

December 4,
2003 

Verus
Support Services Inc.

18 East 50th Street, 10th Floor

New York, NY 10022 

Gentlemen:

        Reference
is made to that certain letter agreement, dated March 6, 2003, relating to the Verus Contingent Subscription (the "Contingent Subscription Agreement"), from Verus
Support Services Inc. ("Verus") to Refocus Group, Inc. ("Refocus"), and those certain related letter agreements, dated June 11, 2003 and August 28, 2003. Defined terms used
without definition in this letter will have the meanings set forth for such terms in the Contingent Subscription Agreement. In addition, Verus and Refocus are parties to that certain letter agreement,
dated March 6, 2003, relating to the Advisory Engagement (the "Advisory Agreement") pursuant to which Verus agreed to be appointed as a non-exclusive advisor for and on behalf of
Refocus (as successor to Presby Corp). 

        As
set forth in the Contingent Subscription Agreement, Verus agreed to provide the Verus Contingent Subscription in order to ensure that Refocus will receive at least $1.0 million
in gross proceeds in the Post-Closing Private Placement by the end of the six-month period following the date of the Contingent Subscription Agreement, which would be
September 6, 2003. In the letter agreement dated August 28, 2003, the parties amended the terms of the Contingent Subscription Agreement to extend the date on which Verus would be
required to make the Verus Contingent Subscription from September 6, 2003, to the earlier of (i) December 6, 2003, or (ii) the date upon which Refocus shall secure at least
$1.0 million in additional financing from other sources. The parties now desire to further amend the terms of the Contingent Subscription Agreement to extend the date on which Verus would be
required to make the Verus Contingent Subscription from December 6, 2003, to the earlier of (i) January 6, 2004, or (ii) the date upon which Refocus shall secure at least
$1.0 million in additional financing from other sources (such aggregate extended time period being the "Deferral Period"). 

        In
the case of clause (ii) immediately above, if the additional financing shall be on terms at least as favorable as the initial private placement that Refocus completed on
March 6, 2003, then, as set forth in the Contingent Subscription Agreement, Verus shall be released from its obligation to make the Verus Contingent Subscription. If, however, the terms of the
additional financing shall not be on terms at least as favorable as those of the March 6, 2003 private placement, then the parties agree to negotiate in good faith to determine the type and
amount of the Verus Contingent Subscription. Verus shall make such revised Verus Contingent Subscription within ten (10) days after the closing date of the additional financing. In addition, in
the event of a merger, acquisition, asset or stock purchase, or other business combination resulting in a change of control of Refocus, Verus shall be released from its obligation to make the Verus
Contingent Subscription. For purposes of this letter, a "change in control" shall be deemed to occur if any "person" or "group" (within the meaning of Section 13(d) and 14(d)(2) of the
Securities Exchange Act of 1934) becomes the ultimate "beneficial owner" (as defined in Rule 13d-3 under the Securities Exchange Act of 1934) of more than a majority of the total
voting power of common stock of Refocus. Nothing in this letter agreement shall be deemed to be a release of Verus' obligation to make the Verus Contingent Subscription, except as stated herein or as
otherwise agreed to in writing. 

        Pending
the performance by Verus of the Verus Contingent Subscription, or the satisfaction of such obligation as a result of a closing of the Post-Closing Private Placement,
and as compensation for the further deferral of the Verus Contingent Subscription obligation, the parties hereby agree that the monthly fee otherwise due under the Advisory Agreement for the month of
December 2003 shall be waived. The Advisory Agreement and all other terms and conditions of such agreement shall remain valid and effective for all other purposes during the Deferral Period.
Such monthly fee payment obligation shall commence again beginning the earlier of (i) January 6, 2004, or (ii) the first full 

calendar
month following the month in which Verus makes the Verus Contingent Subscription or such obligation is otherwise satisfied. 

        This
letter agreement is entered into by the parties hereto without prejudice to either party's rights to assert any claim, right or remedy in respect of the validity of the original
Contingent Subscription Agreement. 

        Please
confirm your agreement to the foregoing by signing and returning to us an executed copy of this letter. 

	 	 	 	 	Very truly yours,
	

 	
 	

 	
 	

REFOCUS GROUP, INC.
	

 	
 	

 	
 	

By:	
 	

 
	 	 	 	 	 	 	

	 	 	 	 	Name:	 	 
	 	 	 	 	 	 	

	 	 	 	 	Title:	 	 
	 	 	 	 	 	 	

	

Acknowledged and Agreed to:	
 	

 	
 	

 
	

VERUS SUPPORT SERVICES, INC.	
 	

 	
 	

 
	

By:	
 	

 	
 	

 	
 	

 
	 	 	
	 	 	 	 
	Name:	 	 	 	 	 	 
	 	 	
	 	 	 	 
	Title:	 	 	 	 	 	 
	 	 	
	 	 	 	 
	Date:	 	 	 	 	 	 
	 	 	
	 	 	 	 

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Exhibit 10.20.2QuickLinks
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Exhibit 10.20.3    
    

[REFOCUS
GROUP LETTERHEAD] 

January 6,
2004 

Verus
Support Services Inc.

18 East 50th Street, 10th Floor

New York, NY 10022 

Gentlemen:

        Reference
is made to that certain letter agreement, dated March 6, 2003, relating to the Verus Contingent Subscription (the "Contingent Subscription Agreement"), from Verus
Support Services Inc. ("Verus") to Refocus Group, Inc. ("Refocus"), and those certain related letter agreements, dated June 11, 2003 and August 28, 2003. Defined terms used
without definition in this letter will have the meanings set forth for such terms in the Contingent Subscription Agreement. In addition, Verus and Refocus are parties to that certain letter agreement,
dated March 6, 2003, relating to the Advisory Engagement (the "Advisory Agreement") pursuant to which Verus agreed to be appointed as a non-exclusive advisor for and on behalf of
Refocus (as successor to Presby Corp). 

        As
set forth in the Contingent Subscription Agreement, Verus agreed to provide, or cause to be provided, the Verus Contingent Subscription in order to ensure that Refocus would receive
at least $1.0 million in gross proceeds in the Post-Closing Private Placement by the end of the six-month period following the date of the Contingent Subscription
Agreement, which would have been September 6, 2003. In letter agreements, dated August 28, 2003 and December 4, 2003, the parties amended the terms of the Contingent Subscription
Agreement to extend the date on which Verus, or its affiliates or assigns, would be required to satisfy the Verus Contingent Subscription from September 6, 2003, to the earlier of
(i) January 6, 2004, or (ii) the date upon which Refocus shall secure at least $1.0 million in additional financing from other sources. The parties now desire to amend the
terms of the Contingent Subscription Agreement, and to amend the terms of the Advisory Agreement, as follows: 

        1.     The
date on which Verus, or its affiliates or assigns, would be required to satisfy the Verus Contingent Subscription (as adjusted in paragraph 2 below) is hereby
further extended from January 6, 2004, to the earlier of (i) June 30, 2004, or (ii) the date upon which Refocus shall secure an amount of additional financing from sources
introduced to Refocus by Verus (excluding Kingsdale Capital Corporation and its affiliates) equal to 1.25 times the amount of the balance of any Verus Contingent Subscription amount (as adjusted in
paragraph 2 below); such additional financing shall be on "commercially reasonable terms," as further defined below, and shall be arranged by Verus for no additional compensation payable to
Verus or its affiliated companies (such aggregate extended time period being the "Deferral Period"). For purposes of the foregoing clause (ii), the parties agree that a financing shall be on
"commercially reasonable terms" if (A) the offering price of the securities, on a common stock equivalent basis, shall be equal to not less than 85% of the average of the closing sales price of
Refocus common stock over the preceding thirty trading days (provided, however, that in no event may the offering price be less than $.50 per share of common stock), and involves not more than 60%
total warrant coverage and cash commissions to a qualified placement agent not to exceed 10%, and only if Refocus determines in its sole discretion that such a placement agent is necessary, or
(B) the Board of Directors of Refocus, in the exercise of its fiduciary duties, otherwise approves the terms of such additional financing. In addition to the above-referenced financing, in the
event of a merger, acquisition, asset or stock purchase, or other business combination resulting in a "change in control" of Refocus, Verus shall be released from its obligation to make the Verus
Contingent Subscription. For purposes of this letter, a "change in control" shall be deemed to occur if any "person" or "group" (within the meaning of Section 13(d) and 14(d)(2) of the
Securities Exchange Act of 1934) becomes the ultimate "beneficial owner" (as defined in Rule 13d-3 under the Securities Exchange Act of 1934) of more than a majority of the total
voting power of common stock of Refocus. 

        2.     The
amount of the Verus Contingent Subscription is hereby reduced by the following: (a) $25,000, representing the amount previously invested by Wolf Investment,
which the parties agree 

was
an investor introduced by Verus; and (b) $20,000, representing the amount of advisory fees otherwise payable to Verus under the Advisory Agreement through March 6, 2004, which amount
is waived by Verus pursuant to paragraph 3 below. In addition, the Verus Contingent Subscription may be further reduced from time to time by the following: (x) $15,000 per month from
March 6, 2004 through the earlier of (i) June 30, 2004, and (ii) the date that Verus shall have satisfied, or caused to be satisfied, its obligations under
paragraph 1 above, representing the amount of advisory fees otherwise payable to Verus under the Advisory Agreement as extended through June 30, 2004, which amount shall be waived by
Verus pursuant to paragraph 3 below; (y) an amount equal to the aggregate number of vested and exercisable warrants to issue common stock of Refocus, originally issued to Verus, its
affiliates, assigns or designees, or investors in the March 2003 private placement, that are surrendered by Verus for cancellation by Refocus, times thirty percent (30%) of the average of the
closing sales price of Refocus common stock over the preceding ten trading days; and (z) by forfeiture and surrender of shares of common stock of Refocus originally issued to Verus, its
affiliates, assigns or designees, or investors in the March 2003 private placement, the value such shares based on the average of the closing sales price of Refocus common stock over the
preceding ten trading days. 

        3.     Towards
the amicable resolution of the Verus Contingent Subscription, the parties hereby agree that the monthly fee otherwise due under the Advisory Agreement for the
period January through March 2004, which the parties acknowledge to be $20,000, is hereby waived. The Advisory Agreement and all other terms and conditions of such agreement shall remain valid
and effective for all other purposes during the Deferral Period. In addition, the parties hereby agree that the Advisory Agreement is hereby extended upon the same terms from March 6, 2004
through the earlier of (i) June 30, 2004, and (ii) the date that Verus shall have performed, or caused to be performed, its obligations under paragraph 1 above;  provided,
however, that the parties hereby agree that the monthly fee otherwise due under the Advisory
Agreement for the March through June 2004 period shall be waived for each month that the Advisory Agreement remains in effect. 

        4.     Towards
the amicable resolution of the Verus Contingent Subscription, Verus hereby waives and relinquishes all rights under the paragraph titled "Board Observation Right
and Information Rights" under the Advisory Agreement, effective immediately. 

        This
letter agreement is entered into by the parties hereto without waiver of and without prejudice to either party's rights to assert any claim, right or remedy in respect of the
validity of the original Contingent Subscription Agreement, unless otherwise expressly excepted or fulfilled by the terms of this letter agreement, or in respect of the prior satisfaction of, or
failure to satisfy, the obligations under the Contingent Subscription Agreement since the original date thereof through the date of this letter. Verus is entering into this letter agreement solely to
further assist Refocus in its financing efforts and minimize any costs towards the amicable resolution of the Verus Contingent Subscription. 

        Please
confirm your agreement to the foregoing by signing and returning to us an executed copy of this letter. 

	 	 	 	 	Very truly yours,
	

 	
 	

 	
 	

REFOCUS GROUP, INC.
	

 	
 	

 	
 	

By:	
 	

 
	 	 	 	 	 	 	

	 	 	 	 	Name:	 	 
	 	 	 	 	 	 	

	 	 	 	 	Title:	 	 
	 	 	 	 	 	 	

	

Acknowledged and Agreed to:	
 	

 	
 	

 
	

VERUS SUPPORT SERVICES, INC.	
 	

 	
 	

 
	

By:	
 	

 	
 	

 	
 	

 
	 	 	
	 	 	 	 
	Name:	 	 	 	 	 	 
	 	 	
	 	 	 	 
	Title:	 	 	 	 	 	 
	 	 	
	 	 	 	 

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Exhibit 10.20.3

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