Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1990-05-29
1991-03-26
Frinks, Ronald
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
A61F 216
Patent
active
050025694
ABSTRACT:
An intraocular lens denoted as a YAG dimpled lens or dimpled YAG lens, which includes a barrier rim and a YAG spacer area in a posterior surface of the lens. The barrier rim is 2-4 mm in longitudinal length and the YAG spacer is 3-4 mm in longitudinal length across the surface diameter of an optic of the intraocular lens. The lens optic can be either plano-convex or bi-convex. A cutout for the dimpled YAG spacer is provided which is either a convave or a substantially rectangular geometrical configuration in the posterior surface of the lens. The YAG spacer can also include a trough or a groove geometrical configuration, such as in the configurations of a Maltese cross, a circular trough or groove, or a circular trough or groove with a Maltese cross therein. The barrier rim is 33% to 80% of the total surface are of the posterior surface of the lens.
REFERENCES:
patent: 4485499 (1984-12-01), Cstleman
patent: 4547914 (1985-10-01), Cstleman
New Nova Aid Kratz Elliptical Posterior Chamber Lens Model 822, Advertisement (3 pages), Coopervision, Coopervision IOL, 3190 160th Ave. S.E., Bellevue, WA 98008, 623.gtoreq.626 1983.
Frinks Ronald
Jaeger Hugh D.
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