Individuals with Parkinson's disease and convergence insufficiency were assigned vergence training. After two months, average positive fusional vergence increased and average near point of convergence decreased. Vergence can be improved with training in persons with Parkinson's disease who also have convergence insufficiency.

中文翻译：

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帕金森氏病和收敛不足的人的聚散功能不断变化。

对患有帕金森氏病和收敛不足的患者进行了视力训练。两个月后，平均正融合融合度增加，平均近融合点降低。通过培训也有收敛不足的帕金森氏病患者，可以改善视力。