Daum K M
Am J Optom Physiol Opt. 1982 Mar;59(3):223-7. doi: 10.1097/00006324-198203000-00004.
The effect of a variety of vergence training procedures on the visual system of 35 asymptomatic young adults with normal binocularity was evaluated. The visual training took place on the weekdays of three consecutive weeks. Vergence ranges were measured before the study began and at the end of the 3-week period. Subpopulations were evaluated at one week and at 6 months to document further the course of the effects. Positive fusional vergence training significantly increased the vergence ranges after 1 week of training; a greater effect was measured after 3 weeks. The vergence capability was found to have decreased 6 months later, but the effects of the training were still apparent. Negative fusional vergence training was less effective; however, significant increases were demonstrable after 3 weeks of training. The phorias the accommodative amplitude were not affected by the orthoptics. We conclude that relatively short periods of training can provide long-lasting increases in the vergence ability of a group of binocular normals. The implications of such findings relative to possible neural control mechanisms and clinical visual training situations are discussed.
评估了多种聚散训练程序对35名双眼正常的无症状年轻成年人视觉系统的影响。视觉训练在连续三周的工作日进行。在研究开始前和3周结束时测量聚散范围。在1周和6个月时对亚组进行评估，以进一步记录效果的变化过程。正融像性聚散训练在训练1周后显著增加了聚散范围；3周后效果更明显。发现6个月后聚散能力有所下降，但训练效果仍然明显。负融像性聚散训练效果较差；然而，训练3周后有显著增加。隐斜和调节幅度不受视轴矫正训练的影响。我们得出结论，相对较短时间的训练可以使一组双眼正常者的聚散能力得到长期提高。讨论了这些发现相对于可能的神经控制机制和临床视觉训练情况的意义。
