Ohkubo H
Department of Ophthalmology, Shinshu University School of Medicine, Matsumoto, Japan.
Doc Ophthalmol. 1989 Jan;71(1):61-7. doi: 10.1007/BF00155133.
Four cases with hysterical amblyopia in youngsters under 15-year-old showed the poor reproducibility of visual field, that is, when the same target was moved from the periphery toward the fixation ten times along the same meridian during the same examination, the position of the plotted points were rather variable. The range of variation was measured from the innermost point to the outermost one, after the two first points were omitted because points first detected were usually far from the others. The variation of cases measured by this method was compared with that of normal persons. Results were as follows; 1. in normal person, the mean value of its range was 5.5 degrees in first decade and 4.2 degrees in second to seventh decade; 2. patients with psychogenic visual disturbances showed a variability of 14.2 degrees, and this was significantly different from normal (p less than 0.01). These results suggest that this convenient method was helpful for diagnosis of hysteria. It should also be remembered that when we evaluate the visual field, changes under 4 degrees are probably not significant.
4例15岁以下青少年癔症性弱视患者的视野再现性较差，即在同一次检查中，同一目标沿同一子午线从周边向注视点移动10次时，所绘点的位置变化较大。由于最初检测到的点通常与其他点相距较远，因此在省略前两个点后，从最内点到最外点测量变化范围。将用此方法测量的病例变化与正常人的变化进行比较。结果如下：1. 在正常人中，其范围的平均值在第一个十年为5.5度，在第二个至第七个十年为4.2度；2. 心因性视觉障碍患者的变化为14.2度，与正常人有显著差异（p小于0.01）。这些结果表明，这种简便方法有助于癔症的诊断。还应记住，当我们评估视野时，4度以下的变化可能不显著。
