Patent ID: 8500807

Claim:
An intraocular lens, comprising at least one pharmaceutically acceptable photochromic polymer that allows all or part of said intraocular lens to change color reversibly when exposed to light, wherein said photochromic polymer is formed from at least one photochromic monomer which is a compound of the polymerizable substituted 3,3-diaryl-3H-naphtho [2,1-b]pyran type, of formula (I): in which R 1 , R 2 and R 3 are chosen independently from the group consisting of hydroxyls, hydroxylalkyls, isocyanato- groups, an anhydride, epoxides, amino- groups, groups bearing a carboxylic acid, and groups bearing a reactive silane, R 4 to R 8 and R 4 ′ to R 8 ′ are identical or different and independently represent a hydrogen, a halogen, a hydroxyl, a C 1 to C 15 alkyl, a C 1 to C 15 hydroxyalkyl or a C 1 to C 15 alkoxy, and R 9 represents a hydrogen, a hydroxyl, a C 1 to C 15 alkyl or a C 1 to C 15 hydroxyalkyl.