Patent ID: 6439721
Filing Date: 2002-08-27
Classification: A61B

Abstract:
A device for converting a viewing the fundus of the eye using an optical system to one viewing a surface of the cornea of the eye using the optical system, comprising a handle and a lens system fastened to said handle, the lens system having a first lens with a concave lens surface configured to be placed onto a cornea of an eye and is combined with at least one further lens, the handle having a mounting for a supplementary lens, the first lens establishing a location of a focal point for the surface of the cornea intermediate the first lens and the supplemental lens, and the supplementary lens being mounted in a viewing direction in front of the first lens and having a focal strength focused to the focal point for the surface of the cornea so that when the optical system is set to view the fundus of the eye and the lens system is thereafter oriented intermediate the optical system and the eye with the first lens being placed onto the cornea, the optical system is focused on the surface of the cornea of the eye.