Patent ID: 9395468
Filing Date: 2016-07-19
CPC Classification: C08L,C09D,G02B,G02C

Claim Text:
1. A coated contact lens comprising: a lens core comprising an outer surface; and a hydrogel layer covalently attached to at least a portion of the outer surface, the hydrogel layer adapted to contact an ophthalmic surface, wherein the hydrogel layer comprises a hydrophilic polymer population having a first PEG species and a second polymer species, the first PEG species being at least partially cross-linked to the second polymer species, wherein the first PEG species comprises a reactive electron pair accepting group and the second polymer species comprises a reactive nucleophilic group, the reactive electron pair accepting group and the reactive nucleophilic group adapted to react to thereby form cross-links between the first PEG species and the second polymer species.