Copolymers for intraocular lens systems

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 220/18 (2006.01)

Patent

CA 2752046

Some embodiments provide a copolymer comprising: an acrylate recurring unit and an optionally substituted vinylaryl recurring unit, wherein a portion of at least one of the recurring units comprises a vinyl-dialkylsiloxy pendant group. The copolymers may be useful as soft acrylic haptics for intraocular lenses. Some embodiments further relate to intraocular lenses having a hydrophobic soft acrylic optic and a silicone haptic, such as a dual optic accommodative lens a having hydrophobic soft acrylic anterior and posterior optic bodies and a silicone haptic. Related copolymeric composite materials as well as additional embodiments of intraocular lenses, are also described herein.

La présente invention concerne un copolymère comprenant : une unité acrylate récurrente et une unité vinylaryle récurrente éventuellement substituée, une partie d'au moins une des unités récurrentes comprenant un groupe pendant vinyldialkylsiloxy. Les copolymères peuvent être utiles comme parties haptiques acryliques souples pour lentilles intraoculaires. L'invention concerne également des lentilles intraoculaires ayant une partie optique acrylique souple hydrophobe et une partie haptique en silicone, tels qu'une lentille accomodative optique double ayant des corps optiques antérieurs et postérieurs acryliques souples hydrophobes et une partie haptique en silicone. L'invention concerne également des matériaux composites copolymères apparentés ainsi que des modes de réalisation supplémentaires de lentilles intraoculaires.

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