Objective: To observe the effects of four active ingredients of Qingguang'an Granules on the expression of TGF-β1 and Smad3 in scarring tissues of filtering tract after filtering surgery in rabbits, and explore its mechanism underlying antiscarring of active ingredients. Methods: All rats were randomly divided into the control group (A group), model group (B group), Mitomycine C group (C group), and four active ingredients of Qingguang'an Granules groups abbreviated including D group, E group, F group and G group. The expression of TGF-β1 and...