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目的:观察共同性外斜视二次手术的疗效,探讨手术难点及对策。方法:55例共同性外斜视二次手术患者中,斜视≤24°(低度组)33例,≥25°(高度组)22例,视局部结膜瘢痕情况设计结膜切口,根据外斜视种类与眼球运动情况设计手术方案,行相应外直肌后徙术及内直肌加强术。结果:术后6周低度组患者正位30例、欠矫2例、过矫1例,高度组分别为13、7和2例,两组欠矫率相比,差异有统计学意义(P<0.05)。结论:共同性外斜视二次手术疗效较好。术后导致手术效果差的最常见原因是欠矫,手术量设计以适当过矫为好。
Objective: To observe the effect of common exotropia secondary surgery, to discuss the surgical difficulties and countermeasures. Methods: Fifty-five patients with common exotropia underwent secondary conjunctival surgery. Twenty-two cases were strabismus ≤24 ° (low group) and 22 cases ≥25 ° (height group). Conjunctival incision was designed according to the local conjunctival scar. According to the types of exotropia Eye movement design surgery program, the line corresponding to the rectus muscle surgery and rectus muscle strengthening surgery. Results: At 6 weeks after operation, the patients in the low-degree group were in the position of 30 cases, under-corrected in 2 cases, over-corrected in 1 case, and in the high-grade group as 13, 7 and 2 cases respectively. There was significant difference between the two groups P <0.05). Conclusion: The common exotropia secondary surgery is better. The most common cause of postoperative poor surgical outcomes is undercorrection, and the amount of surgery designed to be properly overcorrected.