方法对32例外斜视A征患者行上斜肌减弱术、内直肌缩短术或（和）外直肌后退术，观察手术前、后患者眼位、斜视度数和临床特征的改变。

Methods Pre- and post-operative eye position, superior oblique muscle function, clinical features and binocular function were examined and analyzed in 32 patients with A-pattern exotropia.

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方法对32例外斜视A征患者行上斜肌减弱术、内直肌缩短术或（和）外直肌后退术，观察手术前、后患者眼位、斜视度数和临床特征的改变。

Methods Pre- and post-operative eye position, superior oblique muscle function, clinical features and binocular function were examined and analyzed in 32 patients with A-pattern exotropia.

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