A H Tunnacliffe

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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(More)
The binocular contrast sensitivity function is measured using horizontal sinusoidal gratings with base-down prism before the right eye. In photopic conditions one prism-dioptre causes a significant drop in sensitivity at all spatial frequencies and in mesopic conditions as little as a half prism-dioptre has a similar effect. The implications for a(More)
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