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.
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机译：通过（a）常规识别测试（近距离和距离）和（b）适应性光栅视力检查程序确定36位年轻弱视的视力。每种方法获得的敏锐度估计值之间都显示出相当大的一致性，通常小于或等于相邻Snellen线之间的平均差（4.5 c deg-1）。用垂直光栅获得的光栅灵敏度的估计与用水平光栅获得的光栅灵敏度没有明显不同。受试者检测光栅（敏锐度）和准确区分目标方位（水平或垂直）的能力之间没有差异。讨论了与弱视中光栅和识别视力之间的差异的先前发现以及视力卡程序的临床使用有关的实验结果。
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