title: Trabeculectomies. A long-term study.
abstract: This study comprises 277 primary open-angle glaucomas in 239 patients followed up to 10 years after trabeculectomy. Sixty-four per cent had capsular glaucoma and 36% simple glaucoma. The number of cases showing no progression of glaucoma damage and not needing additional medical therapy decreased slowly with time. Seventy-five per cent showed no progress after one year, 70% after 2 years, 57% after 5 years and 42% after 10 years. There was a significant trend that fewer capsular glaucomas progressed than simple glaucomas. High pressure levels before trabeculectomy did not indicate a bad prognosis. Cases with advanced or moderate glaucomatous damage seemed to have the same prognosis. Cataract was a common complication; a 50% reduction of preoperative visual acuity was found in 37% of eyes after 5 years of follow-up.
authors.affiliation: Department of Ophthalmology, Central Hospital, Skövde, Sweden.
authors.forename: G
authors.initials: G
authors.lastname: Törnqvist
authors.forename: L K
authors.initials: LK
authors.lastname: Drolsum
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005500:Follow-Up Studies; D005902:Glaucoma, Open-Angle / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure; D008137:Longitudinal Studies; D008875:Middle Aged; D011183:Postoperative Complications; D014130:Trabeculectomy; D016896:Treatment Outcome; D014792:Visual Acuity