Method of using a corneal ring inlay

Details Method of using a corneal ring inlay Method of using a corneal ring inlay

1994-07-05

1995-02-21

Shay, Randy C.

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

Eye prosthesis

Corneal implant

128898, A61F 214

Patent

active

053912012

ABSTRACT:
A biocompatible corneal inlay ring apparatus for altering the curvature of the central optic zone of the cornea of the eye without intrusion into this optic zone, comprising a continuous ring of a fixed diameter greater than that of the optic zone, of a thickness and geometry such that the curvature of the central optic zone is flattened to an extent appropriate to the refractive correction desired, and of a composition having a refractive index within about 2.0% of that of the corneal tissue.

REFERENCES:
patent: 4781187 (1988-11-01), Herrick
patent: 4976732 (1990-12-01), Vorosmarthy
patent: 5123921 (1992-06-01), Werblin et al.
Simon, G., et al. Meeting of the Assoc. for Research in Vision and Ophthalmology, Apr. 30-May 5, 1989, Sarasota, Fla., Poster Abs. 43.
Krasnov, M. M., et al. Ann. Ophthalmol., 24:165-8 (1992).

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