Pardhan S, Gilchrist J
Department of Optometry, University of Bradford, West Yorkshire, U.K.
Eye (Lond). 1991;5 ( Pt 1):31-5. doi: 10.1038/eye.1991.6.
Monocular and binocular contrast sensitivities were measured in patients with uniocular cataract. The cataractous eye showed a greater monocular loss at higher spatial frequencies compared to lower spatial frequencies. Binocular contrast sensitivity depended on the contrast sensitivity differences between the two eyes. At low spatial frequencies, where the monocular sensitivity difference was minimal, binocular summation was obtained. As the sensitivity difference increased at higher spatial frequencies, the binocular contrast sensitivity decreased steadily until it reached a level below the sensitivity of the cataractous eye, demonstrating binocular inhibition. The clinical implications of binocular inhibition obtained with uniocular cataract are discussed.
对单眼白内障患者进行了单眼和双眼对比敏感度测量。与较低空间频率相比，白内障眼在较高空间频率下表现出更大的单眼视力损失。双眼对比敏感度取决于双眼之间的对比敏感度差异。在低空间频率下，单眼敏感度差异最小，可获得双眼总和效应。随着较高空间频率下单眼敏感度差异增加，双眼对比敏感度稳步下降，直至降至低于白内障眼的敏感度水平，显示出双眼抑制。本文讨论了单眼白内障所导致的双眼抑制的临床意义。
