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|Title:||Acute primary angle closure in an asian population: Long-term outcome of the fellow eye after prophylactic laser peripheral iridotomy|
|Source:||Ang, L.P.K, Aung, T., Chew, P.T.K (2000). Acute primary angle closure in an asian population: Long-term outcome of the fellow eye after prophylactic laser peripheral iridotomy. Ophthalmology 107 (11) : 2092-2096. ScholarBank@NUS Repository. https://doi.org/10.1016/S0161-6420(00)00360-2|
|Abstract:||Purpose: To study the long-term outcome of fellow eyes of Asian patients with acute primary angle closure (APAC) who underwent prophylactic laser peripheral iridotomy (LPI). Design: Retrospective, noncomparative, interventional case series. Participators: Ninety-six consecutive patients with APAC at presentation to one Singapore hospital from January 1990 through December 1994. Methods: The presenting features of the fellow eye were recorded, and the subsequent long-term intraocular pressure (IOP) outcome after LPI was analyzed. All fellow eyes were initially treated with pilocarpine 2% eyedrops four times daily before LPI, which was performed within 1 week of presentation. For any eye, a rise in lOP during follow-up was defined as a rise in lOP requiring treatment by medication or surgery. Main Outcome Measures: Incidence of acute angle closure and IOP. Results: The mean follow-up period was 50.8 months (range, 9-99 months). Of the 96 patients, 15 patients had bilateral APAC, and APAC developed in one fellow eye before LPI could be performed. The remaining 80 fellow eyes were studied. No cases of APAC developed after prophylactic LPI. Seventy-one fellow eyes (88.8%) were successfully treated with LPI alone without the need for additional glaucoma treatment in the long term. Seven eyes (8.8%) had IOPs of 21 mmHg or less on presentation, but a rise in IOP developed on follow-up despite the presence of a patent LPI. Two fellow eyes (2.5%) had signs of preexisting chronic angle closure glaucoma at presentation and required further glaucoma treatment even after LPI. There were no significant complications from the procedure in any of the fellow eyes studied. Conclusions: In this Asian population with APAC, prophylactic LPI is safe and effective in preventing acute angle closure in fellow eyes. In addition, prophylactic LPI prevents long-term rise in IOP in 88.8% of fellow eyes (with approximately 4 years of follow-up). However, because a small proportion of fellow eyes did experience a rise in IOP within the first year, despite the presence of a patent LPI, close monitoring is still advised in the follow-up of fellow eyes of patients with APAC. (C) 2000 by the American Academy of Ophthalmology.|
|Appears in Collections:||Staff Publications|
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