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Predictive factors for visual acuity after intravitreal triamcinolone treatment for diabetic macular edema.

Jonas JB, Martus P, Degenring RF, Kreissig I, Akkoyun I

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

OBJECTIVE: To evaluate which factors influence maximum gain in best-corrected visual acuity after intravitreal injection of triamcinolone acetonide as treatment for diffuse diabetic macular edema. METHODS: This prospective clinical interventional study included 53 eyes with diffuse diabetic macular edema receiving an intravitreal injection of about 20 mg of triamcinolone. The mean +/- SD follow-up was 10.2 +/- 7.6 months. RESULTS: In a multiple linear regression analysis, maximum gain in best-corrected visual acuity after the intravitreal injection of triamcinolone was significantly (P < .001) and negatively correlated with an increased degree of macular ischemia and a higher preoperative visual acuity. Improvement in best-corrected visual acuity was significantly and positively correlated with increased degree of macular edema (P = .001). Change in best-corrected visual acuity after the intravitreal triamcinolone injection was statistically independent (P > .15) of age, sex, pseudophakia, and macula grid laser treatment before inclusion into the study. The results were comparable for gain in visual acuity at 6 months after the injection. CONCLUSION: Pronounced macular edema may have a positive impact, and marked macular ischemia and a high preoperative best-corrected visual acuity may have a negative impact, on an increase in best-corrected visual acuity after intravitreal triamcinolone injection in patients with diabetic macular edema.

Published 12 October 2005 in Arch Ophthalmol, 123(10): 1338-43.
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