Crosslinking of silicones

Details Crosslinking of silicones Crosslinking of silicones

A - Human Necessities

61

F

A61F 2/16 (2006.01)

Patent

CA 2570837

Methods and materials are disclosed for the production of optical elements, in particular intraocular lenses (IOL) that incorporate any amount (0 to 99%) of refraction and/or shape modulating compound into a substantially crosslinked first polymeric matrix. The materials produced according to the inventive methods exhibit certain rheological parameters useful in defining medical lenses. These medical lenses have the ability to change their refractive power via changing the refractive index and/or by altering the shape by stimulus induced polymerization.

L'invention concerne des procédés et des matériaux permettant de produire des éléments optiques, notamment des lentilles intraoculaires (IOL), qui incorporent une quantité quelconque (de 0 à 99%) d'un composé de réfraction et/ou modulateur de forme dans une première matrice polymère sensiblement réticulée. Les matériaux produits selon ces procédés présentent certains paramètres rhéologiques utilisés dans la définition de lentilles médicales. Ces lentilles médicales peuvent modifier leur puissance de réfraction par le biais du changement de l'indice de réfraction et/ou de la modification de la forme par polymérisation induite par un stimulus.

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