Otago Glaucoma Surgery Outcome Study: long‐term results of 841 trabeculectomies
- 1 November 2008
- journal article
- Published by Wiley in Clinical & Experimental Ophthalmology
- Vol. 36 (8), 731-737
- https://doi.org/10.1111/j.1442-9071.2008.01896.x
Abstract
To describe the long-term outcomes of trabeculectomies performed at Dunedin Hospital and followed in the Otago Glaucoma Surgery Outcome Study. Prospective non-comparative case series of 841 eyes of 607 patients who had first trabeculectomies for primary open- or closed-angle glaucoma at Dunedin Hospital between 1976 and 2005 and followed for a mean of 7.5 years (standard deviation 6.0). The probability of a trabeculectomy controlling the intraocular pressure at 21 mmHg or less at 1, 10 and 20 years was 0.96 (95% confidence interval [CI] 0.95, 0.97), 0.86 (95% CI 0.83, 0.89) and 0.79 (95% CI 0.74, 0.83), respectively. Visual acuity was maintained or improved between preoperative assessment and final follow up in 68% of cases. The probability of not being blind following trabeculectomy at 1, 10 and 20 years was 0.98 (95% CI 0.96, 0.98), 0.83 (95% CI 0.80, 0.87) and 0.70 (95% CI 0.64, 0.76), respectively. The proportion of those with glaucomatous field loss increased during follow up from 16% (44/283) at 0-5 years to 50% (10/20) for those with 21 or more years of follow up. A repeat drainage procedure was required in 65 eyes (8%) (56 Molteno implant insertions and 9 repeat trabeculectomies). Intraocular pressure was well controlled by trabeculectomy; however, a steady decline in intraocular pressure control, visual acuity and visual field occurred during follow up.Keywords
This publication has 31 references indexed in Scilit:
- Long-term post trabeculectomy intraocular pressuresActa Ophthalmologica, 2009
- Long‐term results of Molteno implant insertion in cases of chronic angle closure glaucomaClinical & Experimental Ophthalmology, 2007
- The rising cost of glaucoma drugs in Ireland 1996-2003British Journal of Ophthalmology, 2006
- The rising cost of glaucoma drugsBritish Journal of Ophthalmology, 2006
- Glaucoma treatment in Australia: changing patterns of therapy 1994–2003Clinical & Experimental Ophthalmology, 2004
- Otago glaucoma surgery outcome study long-term follow-up of cases of primary glaucoma with additional risk factors drained by molteno implantsOphthalmology, 2001
- Is the role of trabeculectomy in glaucoma management changing?Eye, 2001
- Early hypotony after trabeculectomyActa Ophthalmologica Scandinavica, 1995
- Long‐term outcome following trabeculectomy: IActa Ophthalmologica, 1991
- Influence of various miotics on cataract formation.British Journal of Ophthalmology, 1969