OBJECTIVE: To determine the risk of cataract development following trabeculectomy. DESIGN: A prospective follow-up study of patients seen pre-operatively and at one, three, six and 12 months following surgery and subsequently at yearly intervals. SETTING: Ophthalmology Department of Nottingham University Hospital. PATIENTS: Fifty-seven patients with primary open angle glaucoma, including pseudoexfoliation, undergoing trabeculectomy. MAIN OUTCOME MEASURES: Increases in lens opacity measured by the Lens Opacity Meter 701, the Keeler Projectoscopy and clinical grading. RESULTS: Of 35 patients seen at six months post-operatively, none had lost two Snellen lines of visual acuity due to lens opacity, although three patients showed evidence of increasing lens opacity on all three parameters. CONCLUSION: There is no evidence of visually significant lens opacity occurring at six months post-operative follow-up.
OBJECTIVE: To determine the risk of cataract development following trabeculectomy. DESIGN: A prospective follow-up study of patients seen pre-operatively and at one, three, six and 12 months following surgery and subsequently at yearly intervals. SETTING: Ophthalmology Department of Nottingham University Hospital. PATIENTS: Fifty-seven patients with primary open angle glaucoma, including pseudoexfoliation, undergoing trabeculectomy. MAIN OUTCOME MEASURES: Increases in lens opacity measured by the Lens Opacity Meter 701, the Keeler Projectoscopy and clinical grading. RESULTS: Of 35 patients seen at six months post-operatively, none had lost two Snellen lines of visual acuity due to lens opacity, although three patients showed evidence of increasing lens opacity on all three parameters. CONCLUSION: There is no evidence of visually significant lens opacity occurring at six months post-operative follow-up.