大角度外斜视的矫正手术临床上可采用外直肌超常量后徙、四条水平肌肉同时手术或三条肌肉手术。笔者自 1 991年至今采用三条肌肉常规量手术及超常量手术、四条肌肉手术 ,现将 3组病例分析比较 ,报告如下。临床资料1 一般资料　自 1 991年 6月至 2 0 0 1年 6月 ,共收治外斜视 8 Large-angle exotropia surgery can be clinically used lateral rectus abduction, four levels of muscle surgery or three muscle surgery. Since 1991, the author has used three routine muscle operation and super-constant muscle surgery, four muscle surgery, the three groups are now analyzed and compared, the report is as follows. Clinical data 1 General information from June 1991 to June 2001, were treated exotropia 8