Apparatus for photographing a corneal endothelium

Details Apparatus for photographing a corneal endothelium Apparatus for photographing a corneal endothelium

1993-02-05

1995-01-10

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351206, 351211, 351221, 354 62, 36441313, A61B 314, A61B 104, G06F 1542

Patent

active

053811941

ABSTRACT:
An apparatus for photographing a corneal endothelium of a patient's eye according to the invention includes an optical system for observing the anterior segment of the eye to align optical systems of the apparatus with the eye; an illumination optical system for projecting each illumination light emitted by a light source for observation and a light source for photography onto the cornea of the eye; an endothelium observing and photographing optical system for receiving reflected light from the corneal endothelium and observing and photographing it, the observing and photographing optical system including a reflected light receiving element for aligning the optical systems of the apparatus in the back and forth directions with the eye; display means for displaying images of the anterior segment and the corneal endothelium separately from each other; and image switching means for switching a displayed image from the anterior segment to the corneal endothelium and vice versa.

REFERENCES:
patent: 3762803 (1973-10-01), Papritz
patent: 4323299 (1982-04-01), Roberts
patent: 4976535 (1990-12-01), Reis
patent: 5098426 (1992-03-01), Sklar et al.
patent: 5177512 (1993-01-01), Abe et al.

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