Patent ID: 7988729

Claim:
A biocompatible polymer composition comprising: a hydrogel having an equilibrium water content of from 50 to 55 wt. %, a refractive index greater than about 1.41 and a total sodium and chloride ion flux from about 16 μeq-mm/hr/cm 2 to about 20 μeq-mm/hr/cm 2 , wherein: i) the hydrogel is formed into a thin, high flux posterior chamber intraocular phakic lens; ii) the hydrogel includes N-vinyl-pyrrolidone and 2-phenyl ethyl methacrylate crosslinked with a cross-linking agent; iii) the intraocular phakis lens is foldable for insertion into a lens injector; and iv) the intraocular phakic lens of the hydrogel is sufficiently rigid to remain in an implanted position within a posterior chamber of an eye interposed between a natural lens and an iris of the eye.