Exhibit 10.51 AMENDMENT NO. 1 to REGISTRATION RIGHTS AGREEMENT between Atlantic Technology Ventures, Inc. and the Investors Signatory HeretoRegistration Rights Agreement • April 17th, 2001 • Atlantic Technology Ventures Inc • Pharmaceutical preparations
Atlantic Technology Ventures, Inc. 150 Broadway, Suite 1009 New York, New York 10038Atlantic Technology Ventures Inc • April 17th, 2001 • Pharmaceutical preparations
It is our understanding that (1) you acknowledge that in item (10) of the definition of "Repurchase Event" in the Convertible Preferred Stock and Warrants Purchase Agreement dated September 28, 2000, between Atlantic Technology Ventures, Inc. ("Atlantic") and the Investors, as amended (the "Purchase Agreement"), all references to "the Company" should be to Optex Ophthalmologics, Inc., the majority-owned subsidiary of Atlantic, and (2) that you waive any Repurchase Event that may be caused by occurrence of the event referenced in item (12) of the definition of Repurchase Event in the Purchase Agreement. To confirm that our understanding is correct, please sign a copy of this letter in the space provided below and send a copy by facsimile to Atlantic at (212) 267-2159.
