Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1984-10-04
1990-05-15
Dzierzynski, P. M.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351212, A61B 310
Patent
active
049252933
ABSTRACT:
The present invention relates to an apparatus which attaches to a conventional slit lamp instrument and measures any portion of an eye which can be visualized using the slit lamp instrument. The apparatus includes a device for detecting movement of the slit lamp instrument, a calculating device which calculates distances measured in the eye in dependence upon the movement of the slit lamp instrument, and an output device for outputting the distance measured.
REFERENCES:
patent: 3888569 (1975-06-01), Munnerlyn et al.
patent: 4019813 (1977-04-01), Cornsweet et al.
patent: 4398812 (1983-08-01), Kelman
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