Gauthier G M, Marchetti E, Piron J P, Vercher J L
J Fr Ophtalmol. 1983;6(6-7):597-604.
Misalignment of the visual axes of the eyes observed in strabismus may result from sensory, motor, and/or central nervous system disorders. The functional properties of a technique designed to increase, through training, the monocular motor control of normal human subjects was evaluated, the ultimate goal being obviously to apply the technique to cases of minor strabismus. The subject is seated in front of a television screen. A diaphragm extending from the subject's head to the screen divides the picture into two visually separated half fields. A micro-computer was programmed to project two patterns on the screen, made up of vertical green and grey bars (spatial frequency, 3 deg.). Displacement of the two visually superposable half fields could be independently achieved. The subject's task was to fixate, with one eye, the corresponding half field maintained stationary and track, with the other eye, the motion of the second half field. Perfect fusion of the two half fields has to be preserved during movements of the mobile half field over 2 to 6 degrees at a frequency of 0.4 Hz. The results show that after a few training sessions, subjects developed a high gain monocular motor control. This observation suggests that the method may be used as therapy to correct minor strabismus with or without anomalous retinal correspondence, and offers the possibility to study static and dynamic characteristics of Panum's areas and particularly their modifications as a function of training of monocular motor control.
斜视中观察到的双眼视轴不对准可能由感觉、运动和/或中枢神经系统疾病引起。对一种旨在通过训练增强正常人类受试者单眼运动控制的技术的功能特性进行了评估，其最终目标显然是将该技术应用于轻度斜视病例。受试者坐在电视屏幕前。一个从受试者头部延伸到屏幕的光阑将画面分成两个视觉上分开的半视野。一台微型计算机被编程在屏幕上投射两种图案，由垂直的绿色和灰色条纹组成（空间频率，3度）。两个视觉上可重叠的半视野的位移可以独立实现。受试者的任务是用一只眼睛注视保持静止的相应半视野，并用另一只眼睛跟踪第二个半视野的运动。在移动的半视野以0.4赫兹的频率在2至6度范围内移动时，必须保持两个半视野的完美融合。结果表明，经过几次训练后，受试者发展出了高增益的单眼运动控制。这一观察结果表明，该方法可作为治疗手段用于矫正有或无异常视网膜对应的轻度斜视，并为研究潘诺区的静态和动态特征，特别是其作为单眼运动控制训练函数的变化提供了可能性。
