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Abstract #6939 Published in IGR 4-1
Long-term effect of phacoemulsification on intraocular pressure after trabeculectomy
Derbolav A; Vass C; Menapace R; Schmetterer K; Wedrich AJournal of Cataract and Refractive Surgery 2002; 28: 425-430
PURPOSE: To evaluate the effect of temporal clear corneal phacoemulsification on the intraocular pressure (IOP) in eyes that have had trabeculectomy. METHODS: This retrospective study evaluated the IOP in 48 eyes (35 patients) that had temporal clear corneal phacoemulsification; after trabeculectomy. The mean interval between trabeculectomy and phacoemulsification was 27 months ± 21 (SD) and the mean follow-up after phacoemulsification. 23 ± 12 months. IOP and antiglaucoma therapy before cataract surgery and at the end of follow-up were evaluated. For statistical analysis, the paired t test, Wilcoxon test and chi-square test were used. RESULTS: Thirty-five eyes (73%) preoperatively and 25 eyes (52%) postoperatively were controlled (IOP < 22 mmHg) without antiglaucoma therapy. The difference was statistically significant (p = 0.04, chi-square test). At the end of follow-up, the increase in mean IOP (1.6 mmHg) and in mean number of antiglaucoma medications (0.4) was statistically significant (p = 0.002 and p = 0.05, respectively). CONCLUSIONS: Temporal clear corneal phacoemulsification after trabeculectomy was followed by a slight but statistically significant increase in IOP and the need for antiglaucoma medication after two years. However, the impairment in IOP control is comparable to that in the natural course of trabeculectomy.
Dr. A. Derbolav, Department of Ophthalmology, University of Vienna, Vienna, Austria. dr_agnes_derbolav@yahoo.com
Classification:
12.12.3 Phacoemulsification (Part of: 12 Surgical treatment > 12.12 Cataract extraction)