Haegerstrom-Portnoy G, Schneck M E, Lott L A, Brabyn J A
School of Optometry, University of California, Berkeley 94720-2020, USA.
Optom Vis Sci. 2000 Dec;77(12):653-62. doi: 10.1097/00006324-200012000-00012.
To examine to what extent measurement of standard visual acuity allows prediction of other spatial vision measures on an individual basis when high correlations exist between visual acuity and the other measures.
A series of spatial vision functions were measured in a sample of 900 community-dwelling older observers. Regression analysis was performed, and correlation coefficients were calculated between standard high-contrast visual acuity and other spatial vision measures including contrast sensitivity, low-contrast acuity, low-contrast low-luminance acuity (SKILL card), and disability glare acuity.
All measures were highly and significantly correlated with standard visual acuity (r = 0.68 to 0.91). Despite the high correlations, many predictions of the other spatial vision measures from the correlation with standard acuity fell considerably outside of acceptable ranges determined by repeatability. The influence of the range of values in correlations is emphasized.
Other spatial vision measures cannot be predicted on an individual basis from visual acuity despite high and significant correlations between the measures.
当视力与其他测量指标之间存在高度相关性时，研究标准视力测量在多大程度上能够对个体的其他空间视觉测量指标进行预测。
对900名社区居住的老年观察者样本进行了一系列空间视觉功能测量。进行了回归分析，并计算了标准高对比度视力与其他空间视觉测量指标之间的相关系数，这些指标包括对比敏感度、低对比度视力、低对比度低亮度视力（SKILL卡片）和失能眩光视力。
所有测量指标均与标准视力高度显著相关（r = 0.68至0.91）。尽管相关性很高，但根据与标准视力的相关性对其他空间视觉测量指标进行的许多预测，都大大超出了由可重复性确定的可接受范围。强调了相关性中值范围的影响。
尽管这些测量指标之间存在高度显著的相关性，但无法根据视力对个体的其他空间视觉测量指标进行预测。
