方法：选择2010-01/2013-01 我院收治的60例60眼孔源性视网膜脱离的患者作为观察对象； 所有病例均行视网膜外路手术，随机分为视网膜显微外路手术(试验组)29例29 眼； 视网膜传统外路手术组(对照组)31 例31 眼，比较两组患者手术时间、视网膜复位率、术后视力提高率。

结果：视网膜外路显微手术时间较传统手术时间短(P=0.0087)。试验组27例一次性视网膜复位，成功率为93%； 对照组28例一次性视网膜复位，成功率为90%； 两组相比，无统计学差异(P>0.05)。试验组25例视力提高，提高率为86%； 对照组28例视力提高，提高率为90%，两组相比无统计学差异(P>0.05)。

结论：视网膜外路显微手术和传统手术治疗孔源性视网膜脱离比较，视网膜复位率及术后视力提高率无明显差异； 显微外路手术具有手术时间短、易掌握、效果良好等优点。

METHODS: From January 2010 to January 2013, 60 patients(60 eyes)in our hospital were randomly divided into experimental group(29 cases, 29 eyes)and control group(31 cases, 31 eyes), the external approach microsurgery and conventional external approach surgery were performed respectively(by the same skilled doctor). Retinal reattachment rate, visual acuity improvement rate and operative time were compared between two groups.

RESULTS: It cost shorter time for the external approach microsurgery than that of conventional external approach surgery(P=0.0087). The once successful retinal reattachment rate in experimental group was 93%(27 cases), which was higher than that in control group(90%, 28 cases), there was no statistical difference. The vision improvement rate in control group was 86%(25 cases), compare to 90%(28 cases)in experimental group, there was no statistical differences.

CONCLUSION: No statistical differences showed in visual acuity improvement and the once retinal reattachment rate between the two groups for rhegmatogenous retinal detachment. However, it is believed that external approach microsurgery could be faster, easier to learn with satisfactory effect.