目的　探讨超常量外直肌后徙术治疗外斜视的方法及效果。方法　对 2 8例 (5 4眼 )共同性外斜视及麻痹性外斜视患者行外直肌超常量后徙手术 ,单眼或双眼外直肌后徙 11～ 15 mm。结果　术后眼位矫正良好 ,其中13眼出现不同程度的外转受限。结论　该手术方式简便 ,避免损伤过多的眼外肌 ,术后效果满意。 Objective To investigate the method and effect of extrinsic extrinsic posterior retrusion surgery for exotropia. Methods Twenty-eight patients (54 eyes) with common exotropia and paralytic exotropia were retrospectively retrospectively performed. The posterior rectus of one or both eyes was reset to 11-15 mm. Results Postoperative eye position correction was good, of which 13 cases of varying degrees of external rotation limited. Conclusion The operation method is simple, avoid excessive damage to the extraocular muscles, satisfactory results.