Capsular intraocular lens implant having a refractive liquid...

A - Human Necessities – 61 – F

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A61F 2/16 (2006.01)

Patent

CA 2503961

An intraocular lens having a light-transmitting optic (32, 94a, 94b, 142, 216) comprised of a synthetic light-refractive material (40, 102) operably coupled with a flexible optic positioning member (34, 62, 74, 84, 100, 210) to refract light onto the retina in order to correct refractive errors in the eye (10). The refractive material has an index of refraction of from about 1.36 to 1.5 or higher. The optic positioning member (34, 62, 74, 84, 100, 210) is constructed of a flexible synthetic resin material such as polymethylmethacrylate and permits focusing upon objects located near to and far from the viewer. The optic (32, 94a, 94b, 142, 216) of the present invention possess greater refractive capability than optics conventionally used in IOL construction, and permits retinal receipt of the image being viewed in order to correct refractive errors.

L'invention concerne une lentille intra-oculaire comprenant un dispositif optique de transmission de la lumière (32, 94a, 94b, 142, 216) constitué d'un matériau synthétique réfringent (40, 102) couplé de manière fonctionnelle à un élément de positionnement optique flexible (34, 62, 74, 84, 100, 210) afin de dévier la lumière sur la rétine et de corriger ainsi les erreurs de réfraction dans l'oeil (10). Le matériau réfringent possède un indice de réfraction compris entre environ 1,36 et 1,5 ou plus. L'élément de positionnement optique flexible (34, 62, 74, 84, 100, 210) est constitué d'une résine synthétique flexible telle que le polyméthylméthacrylate et permet de réaliser une focalisation sur des objets situés à proximité ou loin du sujet visualisant. Le dispositif optique (32, 94a, 94b, 142, 216) selon l'invention possède une plus grande capacité de réfraction que les dispositifs optiques utilisés habituellement dans la construction de lentilles intra-oculaires et permet une réception rétinienne de l'image visualisée afin de corriger les erreurs de réfraction.

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