Back to results
US 5,914,355 AGranted
Method for making contact lenses having UV absorbing properties
AssigneeBausch & Lomb Incorporated
InventorJay F. Kunzler
Life of this patent
Estimating the term…
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.
Claims18
A method for preparing a lens having UV-absorbing properties, comprising:
- 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;
- and
- treating the lens to convert the essentially non-UV-absorbing compound to a UV-absorbing agent.
Dependencies are inferred from the claim text.