Gonioscopy findings and prevalence of occludable angles in a Burmese population: the Meiktila Eye Study
Date
2007
Authors
Casson, R.
Newland, H.
Muecke, J.
McGovern, S.
Abraham, L.
Shein, W.
Selva-Nayagam, D.
Aung, T.
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Journal article
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British Journal of Ophthalmology, 2007; 91(7):856-859
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R J Casson, H S Newland, J Muecke, S McGovern, L M Abraham, W K Shein, D Selva, T Aung
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Abstract
<h4>Aim</h4>To determine the prevalence of preglaucomatous angle-closure disease in central Myanmar.<h4>Methods</h4>A population-based survey of inhabitants >or=40 years in the Meiktila District was carried out; 2481 subjects were identified, 2076 participated and 2060 underwent gonioscopy of at least one eye. Eyes with angles traditionally described as "occludable" were recorded as primary angle-closure suspects (PACS); eyes with PACS and peripheral anterior synechiae (PAS), or an increased intraocular pressure but without primary angle-closure glaucoma, were recorded as primary angle closure (PAC).<h4>Results</h4>The prevalence of PACS in at least one eye was 5.7% (95% CI 4.72 to 6.62); prevalence increased with age and was more common in women (p<0.001). The prevalence of PAC in at least one eye was 1.50% (95% CI 1.47 to 1.53). All participants with PAS had at least 90 degrees of closure (range 90-360 degrees).<h4>Conclusion</h4>The prevalence of preglaucomatous angle-closure disease (PACS and PAC) in this population was 5.7% and 1.5%, respectively. PACS was more common in women, and its prevalence increased with age.
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Copyright © 2007 by the BMJ Publishing Group Ltd.