Coren S
Department of Psychology, University of British Columbia, Vancouver, Canada.
Am J Optom Physiol Opt. 1987 Dec;64(12):897-900. doi: 10.1097/00006324-198712000-00003.
There are often large disparities in the way in which visual acuities are reported for groups. A survey of 156 reports published within the last 5 years shows that some researchers report binocular acuity, others best eye, monocular, or mean monocular acuities. Some of these measures may be confounded further with accommodation distance. To ascertain the relation among the various measures of acuity reported commonly, data were obtained from 702 observers. The results indicate that there is a high degree of concordance among the various measures used to report the visual acuity of groups, with many of the correlations in the 0.9 range. It is further shown that a composite measure, based upon mean binocular or best eye acuity, may be a useful means of conveying group differences in visual resolution.
对于不同群体，视力报告的方式往往存在很大差异。一项对过去5年发表的156份报告的调查显示，一些研究人员报告双眼视力，另一些报告最佳眼视力、单眼视力或平均单眼视力。其中一些测量方法可能会因调节距离而进一步混淆。为了确定常用的各种视力测量方法之间的关系，从702名观察者那里获取了数据。结果表明，用于报告群体视力的各种测量方法之间存在高度一致性，许多相关性在0.9的范围内。进一步表明，基于双眼平均视力或最佳眼视力的综合测量方法，可能是传达群体视觉分辨率差异的一种有用手段。
