目的　　为了了解视网膜分支静脉阻塞患者的合并症发生的情况。　方法　回顾性地分析本院 1995年 10月到 1999年 10月 2 77例 (2 77只眼 )视网膜分支静脉阻塞的病例。　结果　 70 %以上的病例发病年龄均在 5 5岁以上 ,81.5 8%的分支静脉阻塞发生于颞上及颞下象限。分支静脉阻塞合并症的发生率与阻塞的位置密切相关 ,愈大的分支静脉阻塞 ,其无灌注区及新生血管的发生率也就愈高。　结论　视网膜分支静脉阻塞黄斑水肿发生在发病的早期 ,无灌注区的出现多在 7～ 12个月 ,而新生血管的出现 ,多半在一年以后 ,因此对这些患者应当有更长期的追踪观察 Objective To understand the occurrence of comorbidities in patients with retinal vein occlusion. Methods A retrospective analysis of our hospital from October 1995 to October 1999 2 77 cases (2 of 77 eyes) branch retinal vein occlusion cases. Results The incidence of over 70% of the patients was over 5 5 years old. 81.5% of the occluded branch veins occured in the superior and inferior temporal quadrant. The incidence of branch vein occlusion comorbidities is closely related to the location of the obstruction. The greater the occlusion of the branch veins, the higher the incidence of non-perfusion area and neovascularization. Conclusions Retinal branch vein occlusion is associated with macular edema in the early stages of disease. Non-perfusion areas occur more frequently in 7-12 months, whereas neovascularization occurs more often than a year later and should be followed up more often by these patients