Effectiveness and safety of traditional Chinese medicine for diabetic retinopathy: A systematic review and network meta-analysis of randomized clinical trials

Figure 8 Risk of bias funnel chart. A: Total effective rate; B: Visual acuity; C: Vascular endothelial growth factor; D: Fundus hemorrhage area; E: Fasting blood glucose; F: Glycated hemoglobin. a: CT: Conventional treatment, including blood glucose control, blood pressure lowering, lipid regulation and other conventional treatments; b: Compound Xueshuantong Capsules; c: Qiming Granules; d: Compound Danshen Dripping Pills; e: Hexue Mingmu Tablets; f: Qiju Dihuang Pills; g: Shuangdan Mingmu Capsules; h: Danggui Buxue Decoction; i: Xuefu Zhuyu Decoction; j: Buyang Huanwu Decoction.