年轻弱视患者的光栅视力和识别视力
Grating and recognition acuities of young amblyopes.
作者信息
Moseley M J, Fielder A R, Thompson J R, Minshull C, Price D
机构信息
Department of Ophthalmology, University of Leicester, Leicester Royal Infirmary.
出版信息
Br J Ophthalmol. 1988 Jan;72(1):50-4. doi: 10.1136/bjo.72.1.50.
The visual acuities of 36 young amblyopes were determined by (a) conventional recognition tests (near and distance) and (b) an adapted grating acuity card procedure. Considerable agreement between the estimates of acuity obtained with each method was demonstrated, which was generally less than, or equal to, the mean difference between adjacent Snellen lines (4.5 c deg-1). Estimates of grating acuity obtained with vertical gratings did not differ significantly from those obtained with horizontal gratings. There was no difference between the subjects' ability to detect the grating (acuity) and accurately to discriminate target orientation (horizontal or vertical). The results of the experiment are discussed in relation to previous findings of a discrepancy between grating and recognition acuities in amblyopia, and the clinical use of the acuity card procedure.
通过以下两种方法测定了36名年轻弱视患者的视力：（a）传统识别测试（近视力和远视力）；（b）一种改良的光栅视力卡程序。结果表明，两种方法所测得的视力估计值之间具有相当高的一致性，该一致性通常小于或等于相邻斯内伦视力表行之间的平均差异（4.5 c deg-1）。垂直光栅所测得的光栅视力估计值与水平光栅所测得的结果无显著差异。受试者检测光栅（视力）和准确辨别目标方向（水平或垂直）的能力没有差异。结合先前关于弱视患者光栅视力与识别视力之间差异的研究结果以及视力卡程序的临床应用，对本实验结果进行了讨论。
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