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1·One patient complained diplopia, and the other 21 patients did not complained any symptoms according to binocular disorders. No cases of severity complication were found.

除1例诉复视外，21例患者无双眼视障碍的症状，无严重并发症发生。

2·The torsional coordination of binocular eye movements is a complex task since misalignment produces retinal disparities which result in diplopia and decrease of stereopsis.

双眼旋转运动协调很复杂，协调不佳将会导致双眼的视网膜物像产生视差，引起复视和立体视下降。