Hess R F, France T D, Tulunay-Keesey U
Exp Brain Res. 1981;44(3):295-311. doi: 10.1007/BF00236567.
Spatio-temporal sensitivity at and above threshold was investigated in a group of patients who exhibited visual loss secondary to uniocular congenital cataract which was present within the first year of life and later removed. The results fall into two general categories depending upon the severity of the visual loss and in particular upon the nature of the temporal loss. In the group exhibiting less severe amblyopia, contrast sensitivity for high and medium spatial frequencies was attenuated to a similar extent for all temporal frequencies. In the group exhibiting more severe amblyopia no form vision a was present; only temporal perception remained. In these cases a greater loss of flicker threshold sensitivity occurred at higher temporal frequencies. Supra-threshold tests revealed that movement perception was effectively normal in both of these groups. These results demonstrate that stimulus deprivation amblyopia, while different in some respects from anisometropic amblyopia is more similar to that condition than to strabismic amblyopia Previous animal results derived from monocular lid suture in cat and monkey are compared with these findings.
在一组因单眼先天性白内障导致视力丧失的患者中，研究了阈值及以上的时空敏感度。这些患者在出生后第一年内就患有先天性白内障，随后白内障被摘除。根据视力丧失的严重程度，特别是根据时间性视力丧失的性质，结果可分为两大类。在弱视程度较轻的组中，所有时间频率下，高空间频率和中空间频率的对比敏感度均以相似程度降低。在弱视程度较重的组中，不存在形觉视力；仅保留时间感知。在这些情况下，较高时间频率下的闪烁阈值敏感度损失更大。阈上测试表明，这两组患者的运动感知实际上都是正常的。这些结果表明，剥夺性弱视虽然在某些方面与屈光参差性弱视不同，但与屈光参差性弱视比与斜视性弱视更相似。将先前从猫和猴的单眼眼睑缝合实验得出的动物实验结果与这些发现进行了比较。
