Heravian-Shandiz J, Douthwaite W A, Jenkins T C
Department of Optometry, Bradford University, West Yorkshire, UK.
Ophthalmic Physiol Opt. 1993 Jul;13(3):295-8. doi: 10.1111/j.1475-1313.1993.tb00472.x.
The effect of induced fixation disparity produced by negative lenses and base-in prisms on the pattern visually evoked potential (VEP) was investigated. Monocular and binocular pattern reversal VEP were recorded through the negative lenses and base-in prisms using a 9.5 min arc check size. The results suggest that the mean binocular amplitude was 27% larger than the mean monocular amplitude which indicates partial summation in the absence of negative lenses or base-in prisms. A reduction of the binocular VEP amplitude appears to arise in the presence of fixation disparity induced by both the negative lenses and base-in prisms. Both the prisms and the negative lenses had no appreciable effect on the monocular VEP amplitude.
研究了负透镜和底向内棱镜产生的诱导性注视差异对视诱发电位（VEP）模式的影响。使用9.5分视角的检查视标，通过负透镜和底向内棱镜记录单眼和双眼图形翻转VEP。结果表明，双眼平均波幅比单眼平均波幅大27%，这表明在没有负透镜或底向内棱镜的情况下存在部分总和效应。在由负透镜和底向内棱镜诱导产生注视差异的情况下，双眼VEP波幅似乎会降低。棱镜和负透镜对单眼VEP波幅均无明显影响。
