Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1986-12-29
1989-02-28
Boverick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351200, A61B 314
Patent
active
048079880
ABSTRACT:
The present invention relates to a method and device for evaluating vision in humans. One feature of the present invention resides in a method and a device in which a plurality of symbols spaced from one another are moved and their speed of movement is adjusted so that the symbols become visible by a person to be evaluated as stationary symbols which appear in certain time intervals.
At this point, an average statistic frequency of symbol appearance corresponds to the frequency of jumps of the person's eyes in direction of the symbols movement, while the value of the speed of the symbols movement at which they appear as stationary corresponds to an approximate speed of the person's eyes during the jumps.
REFERENCES:
patent: 3992087 (1976-11-01), Flom et al.
patent: 4611583 (1986-09-01), Wasserman
Boverick Rodney B.
Dzierzynski P. M.
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