Objective: To investigate the effects of SanXue MingMu Tablets (SXMMT) of activating blood, relieving meridians, draining water and brightening eyes on the expression of tPA, PAI-1 of rabbits’ retina vein obstruction (RVO) model. Method: 36 healthy domestic rabbits with color were divided into 4 groups, 9 for each group, i.e. group A: healthy blank group, group B: model group, group C: XueShuangTong group,and group D: SXMMT group. RVO model were made with Nd: YAG laser photocoagulation whose wavelength is 532nm, administered intraga...