ARTIFICIAL CRYSTALLINE LENS OF EYE Russian patent published in 2010 - IPC A61F2/16 

FIELD: medicine.

SUBSTANCE: invention relates to ophthalmosurgery. Artificial crystalline lens of eye contains optic and support elements. Anterior surface of optic element is made in form of flat surface. On flat plane periphery segments of toric surface convex in the direction of cornea are located. Posterior surface of optic element is made in form of concave with respect to anterior surface curved surfaces with continuous curvature, having one central axis. Central surface is made in form of segment of concave elliptic surface. Ratio of large axis of elliptic surface to optic element diametre lies in the interval from 0.25 to 0.5. Second part of posterior surface is made in form of segment of concave hyperbolic surface. Ratio of segment of hyperbolic surface to diametre of optic element lies in interval from 0.35 to 0.45. Peripheral part of posterior surface is made in form of segment of parabolic surface with ratio of said surface diametre to diametre of optic element lying in the interval from 0.35 to 0.45.

EFFECT: increase of acuity of photopic and scotopic vision to the level of intact eye and reduction of astigmatism.

2 dwg