Photochromic intraocular lenses and methods of making the same
AssigneeMedennium, Inc.
InventorsStephen Q. Zhou, Christopher D. Wilcox, Christine J. Liau
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Abstract
Intraocular lenses containing a photochromic agent, are disclosed. Specifically, the foldable intraocular lens of the present invention comprises an optic body made from a crosslinked material comprising at least one monomer, a crosslinker, a UV absorber, and a photochromic agent which has a maximum absorption peak of about 400-500 nm in its excited state. The lens has a glass transition temperature of about 37° C. or lower. Methods for making these intraocular lenses are also taught.
Claims19
A foldable intraocular lens, which will change to a colored state when the wearer of the lens is in a strong light environment, the optic body of which is made from a crosslinked polymeric composition comprising:
- (a) at least one monomer;
- (b) a crosslinker;
- (c) a UV absorber;
- and
- (d) a photochromic agent;
- said intraocular lens having a glass transition temperature of about 37° C. or lower, and being activated when exposed to UV light;
- and said photochromic agent having its maximum absorption peak in the wavelength range of about 400-500 nm in its excited state.
Dependencies are inferred from the claim text.