方法：裂孔源性视网膜脱离患者46例46眼，其中26例行显微外路视网膜脱离手术(显微组)，20例行传统外路视网膜脱离手术(传统组)，由同一手术者完成。回顾分析其临床资料，对比两组的临床情况及疗效。

结果：显微组和传统组患者手术方式选择、冷凝反应、裂孔封闭情况和一次手术视网膜复位情况的差异均无统计学意义(P>0.05)。显微组患者术后1mo的最佳矫正视力情况较术前改善，其术后视力提高率较对照组高(P<0.05)。

结论：显微外路视网膜脱离手术与传统外路视网膜脱离手术治疗裂孔源性视网膜脱离的手术效果相近，显微外路视网膜脱离手术在改善患者视力方面略有优势。

METHODS: Forty-six patients(46 eyes)with rhegmatogenous retinal detachment were retrospectively analyzed. Twenty-six patients received surgeries under microscope was retrospectively analyzed and compared to that of 20 patients who received surgeries under indirect ophthalmoscope by the same operator.

RESULTS: No statistical difference was found in patients' operation method choice, including condensation reaction reattachment situation and the retina reset operation at a time(P>0.05). The best corrected visual acuity of microscopic group after 1mo of operation was better than before operation, and the improving rate of vision after operation was higher than that of the traditional group(P<0.05).

CONCLUSION:The curative effect of external approach microsurgery has the similar efficacy with the conventional external approach surgery, and gets better visual acuity.