Early treatment of severe cystoid macular edema in central retinal vein occlusion with posterior sub-tenon triamcinolone acetonide.

Purpose:To evaluate the clinical outcomes of posterior sub-Tenon (PST) injection of triamcinolone acetonide (TA) in the early treatment of severe cystoid macular edema (CME) in central retinal vein occlusion (CRVO).Methods:In a noncomparative, prospective study, 18 eyes of 18 patients with severe CM