ULTIFOCAL ARTIFICIAL OCULAR LENS WHOSE TRANSPARENCY VARIES WITH THE AMOUNT OF INCIDENT LIGHT

摘要

it is an artificial eye lensat least two of annulairement zones,a near vision zone (z (vp) in particularresponsive to a correction for near vision, and an area ofdistance (z ") specifically adapted to thecorrection of distance vision.according to the invention, the transparency of the lensmultifocal artificial ocular varies according to a functiondecreasing the illumination to which it is subjected, a compoundphotochromic with incorporated in practicethe material, which can improve theoptical performance.application, in particular, to contact lensesmink, close station.