Robertson K M, Williams T D
Am J Optom Physiol Opt. 1986 Sep;63(9):757-63. doi: 10.1097/00006324-198609000-00009.
A 36-year-old male had been constantly wearing a patch to avoid diplopia since an operation on the right parietal area of the brain. Postsurgical visual field evaluation indicated a complete bilateral left hemianopia with macular splitting. The patient had a constant alternating comitant exotropia with no suppression. By terminating the patching, establishing the appropriate fixing eye, and applying relieving prisms, diplopia was removed. Once binocularity was thus established, it was found (over the course of 7 months) that binocular function was possible with diminishing amounts of prism power. During this 7-month period, measurements of the patient's heterophoria, motor fusion, and sensory fusion revealed that he adapted from his occlusion-induced exotropia toward an habitual heterophoria. Such vergence adaptation has been defined as orthophorization. The occurrence of vergence adaptation after sensory fusion indicates that sensory fusion plays an important role in the etiology of prism adaptation.
一名36岁男性自右侧顶叶脑部手术后一直佩戴眼罩以避免复视。术后视野评估显示双侧完全性左偏盲伴黄斑分裂。该患者有持续交替性共同性外斜视，无抑制。通过停止戴眼罩、确定合适的注视眼以及应用缓解棱镜，复视得以消除。一旦建立了双眼视，发现在7个月的过程中，随着棱镜度数的减少，双眼视功能是可行的。在这7个月期间，对患者的隐斜视、运动融合和感觉融合的测量表明，他从遮盖诱发的外斜视适应为习惯性隐斜视。这种聚散适应被定义为正位化。感觉融合后出现聚散适应表明感觉融合在棱镜适应的病因学中起重要作用。
