Accommodating lens implant

The anterior (48) and posterior (50) sections are configured for yieldable engagement with the anterior (52) and posterior (54) walls of the eye capsule (30), respectively.An intraocular lens (IOL) has been provided with an accommodation assembly that effects axial movement of the IOL optic through both the radial action of ciliary muscles and the axial forces resulting from vitreous pressure on the posterior wall of the capsular bag. An intraocular lens (IOL) has been provided with an accommodation assembly that effects axial movement of the IOL optic through both the radial action of ciliary muscles and the axial forces resulting from vitreous pressure on the posterior wall of the capsular bag.When tugged upon by the ciliary muscle, this lens can alter its shape to focus on objects that are near, far, or middle distances from the eye., today announced that it ranked Number 113 on Deloitte's 2007 Technology Fast 500, a ranking of the 500 fastest growing technology, media, telecommunications and life sciences companies in North America.Crystalens enables the eye to focus continuously and seamlessly through a range of distances, and no other lens implant comes closer to mirroring the natural lens mechanics of the eye.: Crystalens moves and changes shape using the eye’s natural focusing mechanism to focus on objects across a broad range of distances.As the internal muscles of the eye contract during periods of reading, the visual portion of the lens is moved forward shifting ones’ focus to the near tasks.Currently, the first and only FDA approved accommodating IOL is the Crystalens.

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An intraocular lens assembly for insertion into an eye having a capsular bag controlled by a ciliary muscle, the capsular bag including an equator, a posterior wall, and an anterior flap, the assembly including: an accommodation ring configured to extend around the optic in radially spaced relationship thereto, the accommodation ring having a posterior surface for placement against the posterior wall of the capsular bag, an anterior surface for placement against the anterior flap of the capsular bag, and an outer perimeter, each of the fixation members extending outside and beyond the outer perimeter., wherein each of the fixation members has a proximal end coupled to the optic and a distal end for placement in the equator of the capsular bag, the distal end extending posteriorly to the proximal end when the assembly is inserted in the eye., wherein each of the fixation members is formed of sufficiently rigid material to translate compressive forces exerted by the ciliary muscle on the equator of the capsular bag into anterior movement of the optic., wherein the ring body has a predetermined circumference, and wherein each of the positioning members has a sufficiently small width relative to the circumference of the ring body to minimally inhibit contraction of the capsular bag., wherein the accommodation ring is formed from a first material and the fixation members of the intraocular lens are formed from a second material having substantially different properties from the first material., wherein the accommodation ring includes an edge surface extending between the posterior surface and the anterior surface, the edge surface intersecting with a least one of the posterior surface and the anterior surface to form a sharp edge corner therewith.An improved intraocular lens (42) is provided which more closely mimics the accommodation and focusing of the eye's natural lens.The lens (42) comprises an optic (44) and a flexible, resilient optic positioning element (46) which includes an anterior section (48), a posterior section (50), a bight (56), in cross-section, joining the anterior and posterior sections, and a haptic arm (58) extending between the optic (44) and the optic positioning element (46).An improved intraocular lens (42) is provided which more closely mimics the accommodation and focusing of the eye's natural lens.The lens (42) comprises an optic (44) and a flexible, resilient optic positioning element (46) which includes an anterior section (48), a posterior section (50), a bight (56),...In a preferred embodiment, the assembly comprises an IOL having substantially rigid, posteriorly extending fixation members which extend through slots in an accommodation ring encircling the optic.

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