Photokeratometric device

Details Photokeratometric device Photokeratometric device

1986-11-06

1988-10-25

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351214, A61B 310

Patent

active

047799730

ABSTRACT:
A photokeratometric device for attachment to a photoslit lamp microscope having a light source therein comprises a keratometric pattern plate having an opening in the center thereof and a mount for supporting the plate for reproducing through the microscope an image of the cornea of a patient being examined with the keratometric pattern superimposed thereon.

REFERENCES:
patent: 3290927 (1966-12-01), Gambs
patent: 3932030 (1976-01-01), Hasegawa et al.
patent: 4046463 (1977-09-01), La Rassa et al.
patent: 4196980 (1980-04-01), Heine
patent: 4236781 (1980-12-01), Arimura

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