Corneal onlay lens

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

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Details

351160H, 623 5, G02C 704, A61F 214

Patent

active

048100820

ABSTRACT:
A device for correcting refractive errors in the eye comprising a synthetic corneal onlay lens. The lens has an annular projection received in an annular recess in the corneal outer surface and a mechanism for connecting the lens to the cornea. This mechanism comprises sutures received in throughbores in the lens and passing into the cornea, adhesive directly connecting the annular projection and the recess, or both. The annular projection and the recess can have conforming scalloped surfaces to increase the engaging surface areas, thereby reducing the chances of relative rotation and increasing the adhesion therebetween.

REFERENCES:
patent: 2754520 (1956-07-01), Crawford
patent: 2952023 (1960-09-01), Rosen
patent: 3074407 (1963-01-01), Moon et al.
patent: 3228741 (1966-01-01), Becker
patent: 4126904 (1978-11-01), Shepard
patent: 4346482 (1982-08-01), Tennant et al.
patent: 4466705 (1984-08-01), Michelson

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