Inchingolo P, Accardo A, Da Pozzo S, Pensiero S, Perissutti P
Dipartmento di Elettrotecnica, Elettronica ed Informatica Università di Trieste, Italy.
Vision Res. 1996 Sep;36(18):2897-913. doi: 10.1016/0042-6989(96)00007-7.
Post-saccadic drift has been analyzed in strabismic children 11-18 yr old, before and after surgery. Before surgery all the subjects had a large multi-component post-saccadic drift. A disconjugate compensation of the drift was not active, but an optimized cyclopean compensation occurred, aimed at minimizing the drift size in both eyes, either with binocular or monocular vision. The drift was directed toward the static offset of the eyes. One week after surgery the drift increased in most cases but the cyclopean compensation still occurred. One week later, a partial disconjugate compensation decreased the drift to levels lower than before surgery. In one subject surgery produced very big three-component drift, exceeding 20 deg. One year after the drift was decreased to < 1 deg. A mathematical model is presented accounting for most of the results.
对11至18岁斜视儿童手术前后的扫视后漂移进行了分析。手术前，所有受试者都有较大的多成分扫视后漂移。漂移的非共轭补偿不活跃，但发生了优化的双眼补偿，目的是在双眼或单眼视觉时将两眼的漂移大小降至最低。漂移方向朝向眼睛的静态偏移。手术后一周，大多数情况下漂移增加，但双眼补偿仍会发生。一周后，部分非共轭补偿将漂移降低到低于手术前的水平。在一名受试者中，手术产生了非常大的三分量漂移，超过20度。一年后，漂移降至<1度。本文提出了一个数学模型来解释大部分结果。
