Method for corneal curvature adjustment
AssigneeKeraVision, Inc.
InventorsLauren G. Kilmer, Alvin E. Reynolds
Life of this patent
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Abstract
Surgical apparatus for inserting a plastic, split end, adjusting ring into the stroma of the cornea of the eye wherein the adjusting ring includes, as a part thereof, a dissecting head to part the stroma and provide a pathway for the adjusting ring as the ring is rotated. The ends of the adjusting ring are moved to change the shape of the cornea to a desired shape in accordance with the desired visual correction after which the ends of the adjusting ring are fixably joined to maintain the desired shape.
Claims6
A method for correcting vision by adjusting the curvature of the cornea of an eye, comprising the steps of:
- incising a stroma portion of said cornea;
- positioning and temporarily retaining, at said incision, a forward dissecting end of a corneal adjustment ring at an angle corresponding to the slope of the corneal arc of said cornea, said ring having a trailing end;
- rotating said forward dissecting end of said corneal adjustment ring into said stroma portion of said cornea in a circular manner;
- and
- affixing the distance between said forward end and said trailing end of said corneal adjustment ring according to the desired curvature.
A method for correcting vision by adjusting the curvature of the cornea of an eye, comprising the steps of:
- incising a stroma portion of said cornea;
- positioning and temporarily retaining, at said incision, a corneal dissecting ring at an angle corresponding to the slope of the corneal arc of said cornea, said dissecting ring having a forward end and a trailing end;
- rotating said forward end of said dissecting ring into said stroma portion of said cornea in a circular manner until said forward end reaches said incision, and rotatably removing said dissecting ring;
- positioning and retaining, at said incision, a corneal adjustment ring at an angle corresponding to said slope of the corneal arc of said cornea, said ring having a forward end and a trailing end
- rotating said forward end of said corneal adjustment ring into said stroma portion of said cornea in a circular manner until said forward end and said trailing end are contiguous to said incision;
- and
- affixing the distance between said forward end and said trailing end of said corneal adjustment ring according to the desired curvature.
Dependencies are inferred from the claim text.