Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent
1990-03-30
1991-09-17
Dzierzynski, Paul M.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
351226, A61B 302
Patent
active
050489470
ABSTRACT:
An improvement is described in regard to a target which is useful in a process for measuring eye movement of a subject. The target includes a support member with a flat or planar bottom surface which can rest upon the top edge of the arcuate member which is used in measuring eye movement. The target can be easily moved along the arcuate member in a smooth and steady manner, with the support member resting on the arcuate member.
REFERENCES:
patent: 2221936 (1940-11-01), Jobe
patent: 2451932 (1948-10-01), Ellis
patent: 4818097 (1989-04-01), Linde
Dzierzynski Paul M.
Edmundson Dean P.
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