Westall C A, Aslin R N
Ophthalmic Physiol Opt. 1984;4(4):333-7.
Eye movements were recorded from amblyopic and non-amblyopic eyes during monocular viewing of a small target on either a patterned or a patternless background. A continuous measure of autokinesis was also obtained. The variance in eye position was greater in amblyopic eyes than in non-amblyopic eyes. The presence of a patterned background did not reduce the variance in eye position of amblyopic eyes. Autokinesis was greater in amblyopic eyes, but was not correlated with the eye movements. A patterned background significantly reduced the magnitude of autokinesis in amblyopic eyes. These results provide support for the hypothesis that a patterned background improves the accuracy of visual direction by reducing spurious extraretinal signals.
在单眼观察有图案或无图案背景上的小目标时，记录弱视眼和非弱视眼的眼动情况。同时还获得了连续的自主运动测量值。弱视眼的眼位方差大于非弱视眼。有图案背景的存在并没有降低弱视眼的眼位方差。弱视眼的自主运动更明显，但与眼动无关。有图案背景显著降低了弱视眼的自主运动幅度。这些结果为以下假设提供了支持：有图案背景通过减少虚假的视网膜外信号来提高视觉方向的准确性。
