Posterior Subtenon Injection of Triamcinolone (PSTT) for Macular Edema in Various Retinal Conditions

Importance: Cost effective way to resolve macular edema in few of the retinal conditions.Background: To evaluate the effect on vision with Posterior Subtenon Triamcinolone acetonide injection for macular edema in various retinal conditions.Design: Prospective type of interventional study.Participants: 60 eyes of 54 patients with macular edema secondary to various retinal conditions.Of 60 eyes,12 BRVO, 23 CSME, 10 CRVO, 3 vitritis, 12 neuroretinitis.Methods: Pre and post injection (of Posterior subtenon Triamcinolone), BCVA and IOP were evaluated at 1st week, 1 and 3 months.Results: The mean age-57.87yrs, 40 % were male and 60% were females.Pre injection Visual Acuity of <6/60 in 24, 6/60 -6/24 in 21 and 6/18 -6/6 in 15 patients.At least 2 line improvement in BCVA was noted in 28 eyes(46%) at the end of study in which 11(39%) BRVO, 3(10%) CRVO, 8(33%)CSME, 4(14%) neuroretinitis and 2(7%)vitritis.3 patients developed IOP of >21mmHg controlled medically.No other complications were observed.Conclusions: Posterior Subtenon Triamcinolone acetonide is a cost effective modality of treatment for macular edema associated with retinal conditions with minimal complications.