Semi-opaque corneal contact lens or intraoccular lens and method

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks

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Details

219121LE, 219121LY, 219121LM, 351160R, 351160H, 351162, 623 6, G02C 704, A61F 216, B23K 2600

Patent

active

047446471

ABSTRACT:
A selected pattern of disruptions in the lens material of a soft or hard corneal contact lens or intraoccular lens is provided which substantially disrupts the undistorted transmisability of an image to the lens to render it semi-opaque. Preferably, these disruptions are formed by a laser beam which causes the disruptions. The pattern may be used for coding of lens prescription or the like. In another embodiment, a ring may be formed in a soft contact lens of the general shape of the cornea and colored to provide a total color change in the appearance of the iris.

REFERENCES:
patent: 3410979 (1968-11-01), Larsson
patent: 3549733 (1970-12-01), Caddell
patent: 4194814 (1980-03-01), Fischer et al.
patent: 4219721 (1980-08-01), Kamen et al.
patent: 4455893 (1984-06-01), Astero
patent: 4563565 (1986-01-01), Kampfer et al.

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