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.
目的为眼外直肌手术提供有关眼球直肌动脉的解剖学依据。
Objective to provide the anatomic data of ophthalmic rectus muscular arteries that were related to operation of ophthalmic rectus muscles.
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