Exhibit 23.3



CONSENT OF INDEPENDENT AUDITORS


We hereby consent to the incorporation by reference in this Registration
Statement on Form S-3 of our report dated April 23, 2002 relating to
the financial statements of the Eye Care Division of Biocompatibles
International plc, which appears in the Current Report on Form 8-K/A filed
on April 29, 2002. We also consent to the reference to us under the heading
"Experts" in such Registration Statement.



/s/ PRICEWATERHOUSECOOPERS

West London, England
September 29, 2003