Method for making contact lenses having UV absorbing properties
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United States of America Patent
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Jun 22, 1999
Grant Date -
N/A
app pub date -
May 15, 1998
filing date -
May 15, 1998
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Abstract
A method for preparing a lens having UV-absorbing properties involves charging to a mold a monomer mixture comprising lens-forming monomers and an essentially non-UV-absorbing compound, and curing the monomer mixture to form a lens, followed by treating the lens to convert the essentially non-UV-absorbing compound to a UV-absorbing agent.
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