Houtman W A, Roze J H, De Vries B, Letsch M C
University Eye Clinic, Groningen, The Netherlands.
Doc Ophthalmol. 1991;78(3-4):135-40. doi: 10.1007/BF00165673.
Alternating hyperphoria (synonyms: dissociated vertical deviation (DVD) or occlusion hyperphoria) and variants like 'unilateral patching hyperphoria' ('periodic vertical squint') and monocular vertical nystagmus, which may arise after strabismus operations or loss of the function of one of the eyes, have dynamic properties which differ from those of the vertical vergences or fusional movements in normal binocular vision. Alternating hyperphoria is the result of an early intense disturbance of binocular vision, leading to the absence of vertical fusional vergence or the detection of disparity necessary for this. Vertical disparity vergence is essentially a stabilizing and adaptive system.
交替性上隐斜（同义词：分离性垂直偏斜（DVD）或遮盖性上隐斜）以及诸如“单眼遮盖性上隐斜”（“周期性垂直斜视”）和单眼垂直眼球震颤等变体，这些情况可能在斜视手术或一只眼睛功能丧失后出现，它们具有与正常双眼视觉中的垂直聚散或融合运动不同的动态特性。交替性上隐斜是双眼视觉早期强烈紊乱的结果，导致垂直融合聚散缺失或缺乏对此所必需的视差检测。垂直视差聚散本质上是一个稳定和自适应系统。
