Ophthalmic apparatus

Details Ophthalmic apparatus Ophthalmic apparatus

1987-05-11

1989-01-03

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351213, A61B 310

Patent

active

047952504

ABSTRACT:
An opthalmic apparatus in which the corneal reflection image of an illuminating light source for observing the front eye part of an eye to be examined is substantially prevented from mixing with the corneal reflection image of a light source for measurement, when the corneal reflection image is measured, to measure the shape of the cornea of the eye to be examined, whereby the accuracy with which the measurement of the shape of the cornea is measured is enhanced.

REFERENCES:
patent: 4019813 (1977-04-01), Cornsweet et al.
patent: 4043646 (1977-08-01), Heine et al.

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