Intraocular lenses made from polymeric compositions

G - Physics – 02 – B

Patent

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Details

G02B 1/04 (2006.01) A61F 2/16 (2006.01) A61L 27/16 (2006.01) A61L 27/26 (2006.01) G02C 7/02 (2006.01) G02C 7/04 (2006.01) A61L 27/00 (2006.01)

Patent

CA 2348495

Ophthalmic lenses, such as intraocular lenses, include cross-linked polymeric materials having a first constituent derived from a first monomeric component selected from the group consisting of acrylates, methacrylates and mixtures thereof, and a second constituent derived from a second component in an amount effective as a cross linker in the cross-linked polymeric material. The cross-linked polymeric material has branched chain alkyl groups, preferably included with at least a portion of the first monomeric component, in an amount effective to reduce the tackiness of the cross-linked polymeric material relative to a substantially identical cross-linked polymeric material without the branched chain alkyl groups.

L'invention porte sur des lentilles ophtalmiques telles que des cristallins artificiels qui comprennent des matériaux polymères réticulés possédant un premier constituant dérivé d'un premier composant monomère sélectionné dans le groupe comprenant des acrylates, des méthacrylates et des mélanges de ceux-ci, et un second constituant dérivé d'un second composant dans une quantité efficace agissant comme agent de réticulation dans un matériau polymère réticulé. Le matériau polymère réticulé comporte des groupes alkyle à chaîne ramifiée, de préférence avec au moins une partie du premier composant monomère, dans une quantité efficace de façon à réduire le pouvoir adhésif du matériau polymère réticulé par rapport à un matériau polymère réticulé pratiquement identique sans les groupes alkyle à chaîne ramifiée.

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