AIM:To observe retinal hemodynamic influence of compound xueshuantong capsule on nonproliferative diabetic retinopathy( NPDR) after laser photocoagulation.METHODS: A total of 41 patients( 72 eyes) with NPDR after laser photocoagulation were enrolled in this study.They were all given compound xueshuantong capsule,and used color Doppler flow imaging for detection of retinal hemodynamics.RESULTS: After treatment,patients with retinal blood perfusion significantly improved; central retinal arterial peak systo...