Formulated PSTA Injection Versus PATA Alone in the Management of Macular Edema Secondary to Non-ischemic Retinal Vein Occlusions

Formulated Posterior Subtenon Triamcinolone (PSTA) Injection Versus Posterior Subtenon Triamcinolone Alone in the Management of Macular Edema Secondary to Non-ischemic Retinal Vein Occlusions

The aim of this study is to compare formulated Posterior Subtenon Triamcinolone acetonide (PSTA) injection versus Posterior Subtenon Triamcinolone acetonide alone in the management of macular edema secondary to non-ischemic retinal vein occlusions, either central or branch.

Inclusion Criteria:

• Diminution vision due to macular edema secondary to non-ischemic retinal vein occlusions, either central or branch, as evidenced by clinical and angiographic evaluation
• CMT ≥ 250 µ.
• Willing to participate in the study

Exclusion Criteria:

• Unwilling to participate in the study.
• Ischemic RVO
• Prior laser treatment
• Glaucoma/Ocular Hypertension
• Cataract which lead to difficulty in the evaluation of macula
• Vitreous hemorrhage
• Macular ischemia
• Iris neovascularisation
• patients with intravitreal injection of anti VEGFs, steroid, or any intraocular surgery 3 months prior to the inclusion.