Apparatus for photographing a corneal endothelium

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

1993-11-16

1995-05-02

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351211, 351214, 351221, 354 62, A61B 314

Patent

active

054124425

ABSTRACT:
An apparatus for photographing an endothelium of a cornea comprising an apparatus optical system including an anterior portion observing optical system for observing the anterior portion of an eye to be tested, an illumination optical system for illuminating the cornea of the eye, and an observing or photographing optical system for observing or photographing the endothelium of the cornea by receiving the light reflected on the endothelium of the cornea which is illuminated by the illumination optical system, the apparatus optical system being provided with a fixation mark light projecting system capable of changing a position where a fixation mark is presented, in order to change a direction in which the eye is fixedly gazed.

REFERENCES:
patent: 4253743 (1981-03-01), Matsumura
patent: 4323299 (1982-04-01), Roberts
patent: 4597650 (1986-07-01), Yoshino et al.
patent: 4614411 (1986-09-01), Horenz
patent: 4976535 (1990-12-01), Reis
patent: 5262806 (1993-11-01), Szirth

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