Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent
1989-05-31
1991-08-06
Dzierzynski, Paul M.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
351206, 351212, A61B 302
Patent
active
050371940
ABSTRACT:
An ophthalmologic apparatus characterized by the provision of a device for introducing thereinto an eye fundus image at a point in time earlier than the point in time of view field measurment, a device for measuring the field of view of an eye to be examined, and a device for superposing the introduced eye fundus image and the output of the view field measuring a device, one upon the other, and compounding them.
REFERENCES:
patent: 4279478 (1981-07-01), Matsumura
Kashiwagi Kenichi
Kohayakawa Yoshimi
Matsumura Isao
Canon Kabushiki Kaisha
Dzierzynski Paul M.
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