Rentschler I, Hilz R
Exp Brain Res. 1985;60(2):270-8. doi: 10.1007/BF00235921.
Psychometric functions for the recognition of vernier displacements have been measured in 6 strabismic amblyopes, 1 anisometropic amblyope, and 1 bilateral amblyope of unknown aetiology. In the non-amblyopic eyes of the 7 unilateral amblyopes the mean threshold vernier offset was about half of that of a group of 7 experienced normal observers. No correlation was found between vernier acuities and Snellen acuities in the abnormal eyes of squinters. These eyes also displayed massive distortions of horizontal spatial values causing perceptual distortions. In all but one of the amblyopic eyes tested hyperacuity virtually disappeared at the brief exposure duration of 50 ms. None of the observed effects could be predicted from the amblyopic contrast sensitivities, grating resolutions, or letter acuities. This suggests that the loss of positional information is an independent and most significant feature of amblyopic visual dysfunction.
已对6名斜视性弱视患者、1名屈光参差性弱视患者和1名病因不明的双侧弱视患者进行了识别游标位移的心理测量函数测量。在7名单侧弱视患者的非弱视眼中，平均阈值游标偏移约为一组7名经验丰富的正常观察者的一半。在斜视患者的异常眼中，未发现游标视力与斯内伦视力之间存在相关性。这些眼睛还表现出水平空间值的大量扭曲，导致感知扭曲。在除一只弱视眼之外的所有测试弱视眼中，在50毫秒的短暂暴露持续时间下，超视力几乎消失。从弱视对比敏感度、光栅分辨率或字母视力中无法预测所观察到的任何效应。这表明位置信息的丧失是弱视视觉功能障碍的一个独立且最重要的特征。
