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目的 探讨分离性水平斜视（Ｄｉｓｓｏｃｉａｔｅｄ ｈｏｒｉｚｏｎｔａｌ ｄｅｖｉａｔｉｏｎ ， ＤＨＤ） 的临床特点和治疗方法。方法 回顾分析１６ 例ＤＨＤ 病例。结果 临床诊断要点为（１） 间歇发生的不对称性外斜视， 斜视角不固定。（２） Ｂｉｅｌｓｃｈｏｗｓｋｙ 现象存在。（３） 常伴有垂直分离和眼震。治疗方法首选外直肌后徙，合并垂直性分离者行上直肌后徙或下斜肌后徙转位术。１６ 例病人出院时均为正位， 随诊期间有３ 人复发。结论 当ＤＶＤ 病人的水平分离非常明显时， 应诊断ＤＨＤ， 在明显影响外观时应行手术治疗
Objective To investigate the clinical features and treatment of dissociated horizontal deviation (DHD). Methods Retrospective analysis of 16 cases of DHD. Results The main points of clinical diagnosis were (1) intermittent asymmetric exotropia, and oblique angle not fixed. (2) Bielschowsky phenomenon exists. (3) often accompanied by vertical separation and nystagmus. The treatment of choice after the rectus abdominis migration, combined with the vertical separation of the rectus femoris or retrograde oblique posterior displacement surgery. 16 patients were discharged at the time of positive, three patients were followed up during the recurrence. Conclusion When the horizontal separation of DVD patients is very obvious, DHD should be diagnosed, surgery should be performed when the appearance is clearly affected