Patent ID: 7722669
Filing Date: 2010-05-25
Classification: A61F

Abstract:
1. A method of modifying eye color comprising the steps of: forming an annular channel within a plane around and encircling the pupil of an eye, wherein the channel is located in the stroma portion of the eye and has annular borders proximate the limbus and the daylight margin of the pupil, slitting the cornea of the eye to gain access to the channel, inserting into the channel a biocompatible material, wherein the biocompatible material comprises a slurry of particles having a thickness of approximately 1-3 microns, and being at least partially opacified in a color appropriate to accomplish a desired color change wherein the shape of the particles comprise a shape selected from the group consisting of flat round, spherical, ovalized, diamond shaped, star shaped, triangular, and combinations thereof; and wherein the net gain to the total thickness of the cornea is approximately zero, and the inserted material does not materially affect the refractive performance of the cornea while providing said color change and said material permits fluid and nutrients to pass through the stromal tissue.