Contact glass for diagnosing optician for viewing entire eye, particularly fundus of eye, comprises transparent contact lens surface facing to cornea of eye

摘要

The contact glass (1) comprises a transparent contact lens surface (3) facing to the cornea of an eye (10), and a transparent observation surface (2). The contact glass comprises an optical element (4a,4b), which is fastened at a holder (6) fixed in the contact glass. The optical element is freely positioned inside the contact glass with an adjusting element (5) arranged outside the contact glass.