Corrective intraocular lens system and intraocular lenses and lens handling device therefor
OwnerValdemar Portneyinventor
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OwnerValdemar Portneyinventor
Estimating the term…
A corrective intraocular lens system comprises a primary intraocular lens for implanting into an individual's aphakic or phakic eye. The primary intraocular lens includes an optic portion having an optical axis and an anterior surface and a posterior surface, and includes attachment means for maintaining the optic portion centered along the optical axis of the individual's eye. The optic portion is formed having a narrow recess or groove formed into the anterior surface adjacent peripheral regions of the optical portion. The recess may extend completely or only partially around the optic. Included is an elastically deformable, corrective secondary intraocular lens having an optic portion with an anterior surface and a posterior surface. The secondary intraocular lens, which provides spherical, cylinder and/or add power to the primary intraocular lens, is formed having a peripheral edge attachment region or edge tab attachment sized to fit into the recess formed in the primary intraocular lens so that secondary intraocular lens is detachably attached to the primary intraocular lens without clamping or any other attachment with the secondary intraocular lens lying along the anterior surface of the primary intraocular lens. Separate primary and secondary intraocular lenses are disclosed as is a device for implanting and extracting a secondary intraocular lens.
A corrective intraocular lens system which comprises:
A corrective intraocular lens system which comprises:
An intraocular lens for implanting into an individual's aphakic or phakic eye, said intraocular lens comprising an optic portion having an optical axis and an anterior surface and a posterior surface, and including attachment means for maintaining said optic portion optical axis centered along the optical axis of the individual's eye;
An elastically deformable intraocular lens having an optic portion with a convex anterior surface and a concave posterior surface, said intraocular lens having an overall dimension not exceeding about 7 mm and a center thickness not exceeding about 0.4 mm, said elastically deformable intraocular lens being formed having an edge attachment region sized to fit into a narrow recess region formed in a primary intraocular lens optic anterior surface adjacent to peripheral edge regions of said optic so that the elastically deformable intraocular lens lies along an anterior surface of said primary intraocular lens optic so that the elastically deformable intraocular lens provides a power correction to the primary intraocular lens optic.
Dependencies are inferred from the claim text.