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Abstract #18268 Published in IGR 3-3
Effect of cataract surgery on intraocular pressure in eyes with previous trabeculectomy
Mietz H; Andresen A; Welsandt G; Krieglstein GKGraefe's Archive for Clinical and Experimental Ophthalmology 2001; 239: 763-769
PURPOSE: To determine the course of the intraocular pressure (IOP) in eyes in which cataract surgery was performed after trabeculectomy. METHODS: This was a retrospective study of consecutive patients who were scheduled for routine cataract surgery. The patients had previously undergone glaucoma filtering surgery. Pre- and postoperative data were evaluated. Both the status of glaucoma and the increase in visual acuity were monitored. RESULTS: Patients operated on over a six-year period were enroled. The mean interval between glaucoma surgery and cataract surgery was 58.1 months. The mean duration of follow-up after cataract surgery was 31.4 months, with a minimum of 12 months. The mean central visual acuity increased by four lines. Before cataract surgery, 53% of the eyes had complete success (group 1), while 28% had qualified success (group 2), and the remaining 19% were failures (group 3). From group 1, 61% remained a complete success until the last visit. No eye from group 1 became a failure. In group 2, 23% were a complete success at the final follow-up, while 4% failed. In group 3, only 35% were failures, while the remaining 65% were a complete or qualified success. CONCLUSIONS: Eyes with well-controlled IOP following trabeculectomy seem to have a favorable prognosis after subsequent cataract surgery. Eyes with qualified success or failure before cataract surgery have a slight chance of improvement in IOP control. Cataract surgery had no markedly negative effect on IOP overall. Performing trabeculectomy and cataract surgery at different times may still be a feasible option, as opposed to combined procedures.
Dr H. Mietz, Department of Ophthalmology, University of Cologne, 50924 Cologne, Germany. h.mietz@uni-koeln.de
Classification:
12.12 Cataract extraction (Part of: 12 Surgical treatment)
