Laboratory of Vision Sciences and Applications, Department of Optics, University of Granada, Facultad de Ciencias (Edificio Mecenas), Avenida Fuentenueva s/n, 18071 Granada, Spain.
Ophthalmic Physiol Opt. 2009 May;29(3):370-4. doi: 10.1111/j.1475-1313.2009.00643.x.
The aim of this work is to determine the influence of interocular differences in retinal image quality on binocular visual performance. We measured the contrast sensitivity function (both monocular and binocular) and we computed binocular summation. Data on retinal image quality were taken from a double-pass device (OQAS, Optical Quality Analysis System; Visiometrics SL. Tarrasa, Spain), providing the Strehl ratio as a parameter to quantify retinal image quality. A total of 28 observers took part in the experiments. Binocular summation for the contrast sensitivity function was found to be significantly (p < 0.001) correlated with interocular differences in the Strehl ratio. The higher the interocular differences in the Strehl ratio, the lower the binocular summation. Binocular summation is less effective as the interocular differences in retinal image increase.
本研究旨在探讨视网膜像质的双眼间差异对视功能的影响。我们测量了对比敏感度函数（单眼和双眼）并计算了双眼叠加。视网膜像质的数据来源于双光折射仪（OQAS，光学质量分析系统；Visiometrics SL. Tarrasa，西班牙），通过斯特列尔比（Strehl ratio）作为量化视网膜像质的参数。共有 28 名观察者参与了实验。结果发现，对比敏感度函数的双眼叠加与斯特列尔比的双眼间差异显著相关（p < 0.001）。斯特列尔比的双眼间差异越大，双眼叠加越低。随着视网膜像质的双眼间差异增加，双眼叠加的效果越差。
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