Tsai MJ, et al. - Authors compared the effectiveness and safety between posterior sub-tenon injection of triamcinolone acetonide (PSTA) and intravitreal injection of bevacizumab (Avastin) (IVIA) in the treatment of macular edema secondary to retinal vein occlusion. Better visual acuity was seen to be achieved by the intravitreal bevacizumab vs posterior sub-tenon injections of triamcinolone acetonide at 6 months, while central macular thickness (CMT) was comparable. Still, transient intraocular pressure (IOP) elevation was resulted by PSTA.