Apparatus for examination and surgery of the anterior and poster

Details Apparatus for examination and surgery of the anterior and poster Apparatus for examination and surgery of the anterior and poster

1986-08-01

1988-11-22

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351221, A61B 310

Patent

active

047861614

ABSTRACT:
In an instrument for the examination and surgery of the eye, an ophthalmological objective is combined with an operation microscope whose main objective is combined with an optical system of variable back focus and focal length. Every plane of the eye lying between the cornea and the fundus is imaged by the instrument at an intermediate image plane. In this way, with a single instrument, the operator can carry out work on the cornea, the eye lens, the vitreous body, and the retina. Since the instrument provides the observer with a reflection-free image, contact of the eye to be operated upon with an optical auxiliary means which eliminates the refractive power is unnecessary.

REFERENCES:
patent: 4364629 (1982-12-01), Lang et al.
patent: 4411502 (1983-10-01), Lang et al.
patent: 4669837 (1987-06-01), Schirmer et al.

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