Injectable accommodation composition

A - Human Necessities – 61 – F

Patent

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A61F 2/16 (2006.01)

Patent

CA 2564816

The invention relates to a novel composition for improving the accommodation capability of an intraocular lens (IOL). In one embodiment, the composition can be injected into the capsular bag where it surrounds an implanted IOL anchoring the IOL to the capsular bag. Alternatively, for anterior chamber IOLs, the composition can be injected into the bag behind the lens. The material has a refractive index similar to that of aqueous thereby reducing any potential interference with the implanted IOL. Accommodation is provided by the mixture of the crosslinked composition caused by the flexing of the muscles. The novel composition is particularly useful in enhancing accommodation for adjustable intraocular lenses.

L'invention concerne une nouvelle composition destinée à améliorer la capacité d'accomodation d'une lentille intraoculaire (IOL). Dans un mode de réalisation, la composition peut être injectée dans le sac capsulaire dans lequel elle entoure une IOL implantée, fixant l'IOL au sac capsulaire. En variante, pour les IOLs à chambre antérieure, la composition peut être injectée dans le sac derrière la lentille. Le matériau comprend un indice de réfraction semblable à celui de l'humeur aqueuse, réduisant ainsi toute interférence potentielle avec l'IOL implantée. L'accomodation est favorisée par le mélange de la composition réticulée causé par la flexion des muscles. Cette nouvelle composition est utilisée, en particulier, pour favoriser l'accomodation dans les lentilles intraoculaires réglables.

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