Glaucoma detection utilizing pattern discrimination test

Details Glaucoma detection utilizing pattern discrimination test Glaucoma detection utilizing pattern discrimination test

1984-12-26

1987-01-06

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

351224, 351246, A61B 302

Patent

active

046342435

ABSTRACT:
The present invention psychophysically detects earliest signs of loss of vision due to nerve loss in glaucoma and ocular hypertension. An instrument employs a dynamic random dot background field and a movable target that consists of a circular area in which the dots are spatially and temporally coherent. Thus, visual fields will be based on pattern discrimination rather than on conventional measures of luminance discrimination.

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Van de Grind, W. A., "Detection of Coherent Movement in Peripherally Viewed Random-dot Patterns", Journal Opt. Soc. Am., vol. 73, No. 12, p. 1674, (Dec., 1983).

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