Diabetic retinopathy (DR) is one of common micrangium complictions,of which the pathegenesis is not very clear,and often considered to result from impaired micrangium of retina.

• 糖尿病视网膜病变(DR)是糖尿病最为常见的微血管并发症之一,其发病机制尚不完全清楚,一般认为是由于视网膜微血管系统受损所致。