PMID: 3748567Jan 1, 1986Paper

The effect of horizontal differential prism on the binocular contrast sensitivity function

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
A H Tunnacliffe, A T Williams

Abstract

The photopic binocular contrast sensitivity function is measured using a two-way resolution choice sinusoidal-grating target with horizontal differential prism before the right eye of one subject (AHT). A significant drop in sensitivity occurred with 3 prism-dioptres base-out or 4 prism-dioptres base-in prism at an observation distance of 5.9 m, and with 2 prism-dioptres base-out or 8 prism-dioptres base-in at 50 cm. An equivalent effect was confirmed with three additional subjects at a test distance of 2 m. The relationship between these results, the passive position, and the fusional reserves is discussed and reference is made to the effect of vertical differential prism.

Citations

Jan 1, 1990·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·S Pardhan, J Gilchrist
Jul 1, 1993·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·J Heravian-ShandizT C Jenkins
May 1, 1996·Journal of Cataract and Refractive Surgery·B R KwapiszeskiJ M Holmes
Jul 23, 2013·The British Journal of Ophthalmology·Edward LeeD Alistair H Laidlaw

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