Daum K
Am J Optom Physiol Opt. 1986 Oct;63(10):807-12. doi: 10.1097/00006324-198610000-00003.
The purpose of this study was to document the effects of positive fusional vergence therapy and to determine the most effective timing of such training. Four experimental protocols were selected and five subjects were assigned randomly to each of the four experimental groups. Each subject in each group spent 120 min (total) over a period of 3 weeks doing positive fusional vergence training. Group A trained in twelve 10-min sessions; group B in six 20-min sessions; and group C in three 40-min sessions. Group D was a control group. All the training was in-office and consisted of positive fusional vergence training on the synoptophore. Each of the test groups showed increases in their positive fusional vergence ability at both distance and near. Group A (shorter sessions) demonstrated the largest increases overall. In addition, the group which trained in short 10-min sessions (Group A) was the only one which showed significant increases in the negative fusional vergences and the positive blur finding. I conclude that it is best to use short, frequent training sessions to increase the amplitude of positive fusional vergence. The results and implications of the study are discussed briefly.
本研究的目的是记录正融像性聚散训练的效果，并确定这种训练的最有效时机。选择了四种实验方案，五名受试者被随机分配到四个实验组中的每一组。每组中的每个受试者在3周的时间里总共花费120分钟进行正融像性聚散训练。A组进行12次每次10分钟的训练；B组进行6次每次20分钟的训练；C组进行3次每次40分钟的训练。D组为对照组。所有训练均在办公室进行，包括在同视机上进行正融像性聚散训练。每个测试组在远近距离的正融像性聚散能力均有所提高。A组（训练时间较短）总体上提高幅度最大。此外，进行短时间10分钟训练的组（A组）是唯一在负融像性聚散和正性模糊发现方面有显著提高的组。我得出结论，最好使用短时间、频繁的训练课程来增加正融像性聚散的幅度。简要讨论了该研究的结果及意义。
