A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/16 (2006.01)
Patent
CA 2584472
An accommodating intraocular lens (21) is provided having optical parameters that are altered in-situ, wherein an optic portion of the lens includes a lens piston (25) that alters the shape of a lens element (23) of the lens (21) to alter the optical power of the lens (21), responsive to forces applied to a haptic portion (22) of the lens by contraction of the ciliary muscles. Forces applied to the haptic portion (22) are concentrated by the lens piston (25) to provide a greater dynamic range, and may be further augmented by the use of haptic pistons (30) disposed in the haptic portion (22) of the lens (21).
L'invention concerne une lentille intraoculaire accommodative comprenant des paramètres optiques modifiés in-situ, une partie optique de la lentille comprenant un piston modifiant la forme d'un élément de la lentille, de manière à modifier la puissance optique de la lentille, en réponse à des forces appliquées sur une partie haptique de la lentille, par contraction du muscle ciliaire. Des forces appliquées sur la partie haptique sont concentrées par le piston de la lentille, de manière à obtenir une gamme dynamique plus large et peuvent être encore accrues par le biais de l'utilisation de pistons haptiques disposés dans la partie haptique de la lentille.
Cheskin Barry
Esch Victor C.
Stenger Donald C.
Powervision Inc.
Smart & Biggar
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