Schor C, Hallmark W
Invest Ophthalmol Vis Sci. 1978 Jun;17(6):577-81.
Unsteady and eccentric monocular fixation were examined in subjects with strabismic amblyopia. Records of horizontal components of unsteady fixation by amblyopic eyes were characterized by abnormally large saccades and a nasalward bias for slow drifts. Typically, these fixational movements aligned the retinal image on an eccentric nasal retinal region. The presence of a slow control mechanism for eye position in amblyopia was examined by teaching subjects to voluntarily suppress fixation saccades. In the absence of saccades, amblyopic eyes continued to fixate eccentrically, using slow drifting movements. When attempting to fixate in the dark, fast drifts moved an amblyopic eye several degrees from its usual eccentric fixation posture, and large saccades were necessary to control eye position. Results demonstrate the operation of a slow control mechanism for eye position in amblyopia.
对患有斜视性弱视的受试者进行了不稳定和偏心单眼注视检查。弱视眼不稳定注视的水平分量记录的特征是扫视异常大，且慢漂移有向鼻侧偏斜的倾向。通常，这些注视运动将视网膜图像对准偏心的鼻侧视网膜区域。通过教导受试者自愿抑制注视扫视，研究了弱视中眼球位置的慢控制机制的存在情况。在没有扫视的情况下，弱视眼继续使用慢漂移运动进行偏心注视。当试图在黑暗中注视时，快速漂移会使弱视眼从其通常的偏心注视姿势移动几度，并且需要大的扫视来控制眼球位置。结果证明了弱视中眼球位置慢控制机制的作用。
