Retinal vein occlusion (RVO)is a common vascular disease of the retina, yet its pathogenesis and treatment remain very controversial. In recent years, there have been some new understanding about the disease, for example, the classification and pathogenesis, and especially in the therapy of the intravitreal injection of triamcinolone acetonide as well as anti-VEGFs. They can improve visual acuity and treat macular edema effectively. Consequently, they are probably becoming new options for the treatment of RVO.