ARTIFICIAL EYE LENS Russian patent published in 2002 - IPC

FIELD: medical engineering. SUBSTANCE: device is manufactured from biocompatible material impermeable for water vapor and has two lenses of different curvature with zero refraction (meniscus). The material has zero dioptrics in air changeable for negative one in intraocular fluid. Peripheral portions of lenses are joined and form supporting member and geometric cavity between the lenses. The lenses are turned with their convex parts towards the cornea. The first lens has smaller radius with respect to the cornea. Dimensions of the portions of both lenses are the same. Ratio of internal radius of the first lens to the external radius of the second one is equal to 0.5-0.9. Ratios of diameters of beveled portion of the supporting members and the main portions are equal to 1.05-1.15. EFFECT: reduced risk of postoperative complications.