[Clinical study of diabetic retinopathy treated by compound danshen dripping pills].

Objective: To observe the therapeutic effect of compound danshen dripping pills in visual function recovery of diabetic retinopathy.

Methods: 42 patients(78 eyes) with diabetic retinopathy of I-III phase were divided into two groups in random. 43 eyes were treated with compound danshen dripping pills and the other 35 eyes with vitamin BI and Luding C for three months.