Tunnacliffe A H, Williams A T
Ophthalmic Physiol Opt. 1986;6(2):207-12.
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.
使用双向分辨率选择正弦光栅目标，在一名受试者（AHT）右眼之前放置水平差动棱镜，测量明视觉双眼对比敏感度函数。在5.9米的观察距离处，3棱镜度底向外或4棱镜度底向内棱镜会导致敏感度显著下降；在50厘米处，2棱镜度底向外或8棱镜度底向内棱镜也会有同样效果。在2米的测试距离下，另外三名受试者也证实了类似的效果。讨论了这些结果、被动位置和融合储备之间的关系，并提及了垂直差动棱镜的影响。
