Myopic corneal ring with central accommodating portion

Details Myopic corneal ring with central accommodating portion Myopic corneal ring with central accommodating portion

2005-02-01

2005-02-01

McDermott, Corrine (Department: 3738)

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

Eye prosthesis

Corneal implant

C623S005160

Reexamination Certificate

active

06849090

ABSTRACT:
A bio-compatible corneal ring for myopic correction and accommodation for presbyopia. The corneal ring is made from a bio-compatible material with a lens body having an inner and outer circular edge. The inner circular edge forms an opening in the lens body. The posterior surface of the lens body has a uniform radii of curvature between the inner and outer circular edges. The anterior surface has two radii of curvatures providing for correction of myopia. The first radii of curvature extends from near the outer circular edge to a junction point before the inner circular edge. The second radii of curvature extends from the junction point and continues to the inner circular edge. The inner and outer circular edges have a thickness of less than about 0.020 mm, but preferably are about 0.010 mm or less.

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patent: 6436092 (2002-08-01), Peyman
patent: 6623522 (2003-09-01), Nigam

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