Myopia for corneal ring with the regulation of the central part

摘要

The correct myopia [Problems], and to provide a biocompatible corneal implant for adjusting presbyopia. [MEANS FOR SOLVING PROBLEMS] The correct myopia, and biocompatible corneal ring for adjusting the presbyopia (50). (50), with a lens body having a (53) inner circular edge and an outer circular edge (51) is fabricated from a biocompatible material the corneal ring. Inner circular edge (51) forms an opening (52) in the lens body. Rear surface of the lens body has a uniform radius of curvature between inner circular edge (51) outside the circular edge (53). In order to bring about the correction of myopia, the front face has a radius of curvature of the two. The radius of curvature of the first (55) junction points of the previous inner circular edge (51) from near the outer circular edge extends. Extends from the junction point of the above, the radius of curvature of the second (54) is followed by inner circular edge up (51). Inner circular edge and (51) an outer circular edge (53) has a thickness of about 0.02mm less than, and is less than or about 0.010mm, preferably. [Selection Figure Figure 5