Corneal inlay lenses

Details Corneal inlay lenses Corneal inlay lenses

1993-02-10

1994-08-09

Shay, Randy C.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Eye prosthesis

Corneal implant

A61F 214

Patent

active

053362616

ABSTRACT:
A low or high refractive index corneal inlay optical lens adapted to be inserted singly or multiply between the layers of a cornea to correct refractive errors in eyesight, wherein the implanted lens is a solid transparent uncoated lens having no apertures therethrough, of a diameter less than that of the optic zone of the eye under normal light or bright light conditions, such that the movement of fluids, nutrients and gases throughout the corneal layers is unimpeded, and wherein the composition of the lens or lenses relative to that of the surrounding stromal tissue are such that multiple refractive indices may be created and multiple focal corrections are possible.

REFERENCES:
patent: 4607617 (1986-08-01), Choyce
patent: 4624669 (1986-11-01), Grendahl
patent: 4676790 (1987-06-01), Kern
patent: 4781187 (1988-11-01), Herrick
patent: 4932970 (1990-06-01), Portney
patent: 4976732 (1990-12-01), Vorosmarthy
patent: 5166711 (1992-11-01), Portney
patent: 5166712 (1992-11-01), Portney

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