Gonioscopy findings and prevalence of occludable angles in a Burmese population: the Meiktila Eye Study

AimTo determine the prevalence of preglaucomatous angle-closure disease in central Myanmar.MethodsA 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).ResultsThe 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 (pConclusionThe 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.R J Casson, H S Newland, J Muecke, S McGovern, L M Abraham, W K Shein, D Selva, T Aun