The clinical experience of director Gao Jiansheng treating macular edema caused by diabetic retinopathy and retinal vein occlusion is introduced. This paper takes the view that the etiology and pathogenesis of the edema induced by both is deficiency of both qi and yin with the syndrome of blood stasis and qi stagnation of ocular collateral and puts forward the modified therapy with Mimeng Flower decoction.