Accommodating, reduced add power multifocal intraocular lenses

Details Accommodating, reduced add power multifocal intraocular lenses Accommodating, reduced add power multifocal intraocular lenses

A - Human Necessities

61

F

A61F 2/16 (2006.01)

Patent

CA 2407308

An intraocular lens for implantation in an eye of a patient includes a multifocal optic (12) and a movement assembly (14). The optic has a maximum add power which is less than the add power required for full near vision for a pseudophakic eye. The movement assembly is coupled to the optic (12) and is adapted to cooperation with the eye of the patient to effect accommodating movement of the optic in the eye. Lens systems including two optic and two movement assemblies are also provided. The intraocular lenses and lens systems are particularly useful when implanted in the eyes of a patient after removal of the natural lenses.

L'invention concerne un cristallin intraoculaire destiné à être implanté dans l'oeil d'un patient, ledit cristallin comportant une optique multifocale (12) et un ensemble de mouvement (14). L'optique présente une puissance additionnelle maximale inférieure à la puissance additionnelle nécessaire à la vision rapprochée totale d'un oeil pseudo-phakique. L'ensemble de mouvement est couplé à l'optique (12) et peut interagir avec l'oeil du patient de manière à effectuer un mouvement d'adaptation de l'optique dans l'oeil. L'invention concerne également des systèmes de cristallins comportant deux optiques et deux ensembles de mouvement. Ces cristallins intraoculaires et systèmes de cristallin sont particulièrement adaptés à une implantation dans l'oeil d'un patient après extraction des cristallins naturels.

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