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Ophthalmic Physiol Opt. 1990 Jan;10(1):33-6.

The effect of monocular defocus on binocular contrast sensitivity.

Author information

1
Department of Optometry, University of Bradford, West Yorkshire, UK.

Abstract

The monocular contrast sensitivity loss with defocus is well known. We measured binocular contrast sensitivity of sinewave gratings of 6 c/deg in the presence of different levels of monocular defocus. In the absence of defocus, the binocular sensitivity was about 42% higher than monocular. With increasing monocular defocus, the binocular sensitivity decreased steadily until it reached a level below the monocular, showing binocular inhibition. The clinical implications of binocular inhibition with monocular defocus are discussed.

PMID:
2330211
[Indexed for MEDLINE]

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