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Inter-eye difference in diabetic macular edema after unilateral intravitreal injection of triamcinolone acetonide.

Jonas JB, Harder B, Kamppeter BA

Department of Ophthalmology, Faculty of Clinical Medicine, Mannheim of the Ruprecht-Varls University, Heidelberg, Germany. Jost.Jonas@ma.augen.uni-heidelberg.de

PURPOSE: To report on visual outcome of patients receiving intravitreal triamcinolone acetonide for treatment of diffuse diabetic macular edema. DESIGN: Prospective, comparative clinical interventional study. METHODS: Setting: Institutional. patient population: The study included 25 consecutive patients (50 eyes) with bilateral diabetic macular edema. Intervention procedure: Unilateral intravitreal injection of about 20 mg triamcinolone acetonide into the eye (study group) more severely affected by diabetic maculopathy. The contralateral eyes served as control group. Mean follow-up was 7.1 +/- 4.1 months. MAIN OUTCOME MEASURE: Visual acuity, intraocular pressure. RESULTS: In the study group, visual acuity increased significantly (P < or = .001) by 3.0 +/- 2.6 Snellen lines to a peak at two to six months after the injection, and decreased significantly (P = .001) towards the end of follow up. At the end of follow-up, visual acuity was higher, not significantly (P = .18) higher, than at baseline. An increase in visual acuity was found in 23 eyes (92%). In the control group, differences between visual acuity at baseline and at any of the re-examinations during follow-up were not significant (P > .10). In an intra-individual inter-eye comparison, gain in visual acuity was significantly (P < .05) higher in the injected eyes, for the measurements obtained up to four months after injection. CONCLUSIONS: Intravitreal triamcinolone acetonide may temporarily increase visual acuity in eyes with diabetic macular edema.

Published 4 January 2005 in Am J Ophthalmol, 138(6): 970-7.
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