To find an effective medicine in treating diabetic retinopathy(DR).[Methods] DR patients were randomly divided into kakkonein group and control group.

• 目的寻求糖尿病视网膜病变(DR)的有效治疗药物。方法将DR患者随机分为葛根素治疗组和对照组,比较两组治疗前后血流动力学与血液流变学指标。