High ion and metabolite flux lenses and materials

Details High ion and metabolite flux lenses and materials High ion and metabolite flux lenses and materials

C - Chemistry, Metallurgy

08

F

C08F 26/10 (2006.01) A61F 2/16 (2006.01)

Patent

CA 2693808

An exemplary embodiment provides a biocompatible polymer composition suitable for making intraocular lenses, especially posterior chamber phakic lenses, that includes a hydrogel having an equilibrium water content of less than about 55 wt. %. The hydrogel has a refractive index greater than about 1.41 and a sodium ion flux between about 16 to about 20 µeq-mm/hr/cm2.

L'invention concerne une composition de polymère biocompatible appropriée pour fabriquer des lentilles intraoculaires, spécialement des lentilles phakiques de chambre postérieure, qui comprend un hydrogel ayant une teneur en eau d'équilibre inférieure à environ 55 % en poids. L'hydrogel a un indice de réfraction supérieur à environ 1,41 et un flux d'ions sodium compris entre environ 16 et environ 20 µeq-mm/h/cm?.

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