Young and colleagues report that pseudoexfoliation syndrome (PXS) was uncommon in 500 Chinese people aged 60 years and older attending general ophthalmic clinics in Hong Kong with a presumed diagnosis of cataract.1 We have previously carried out a population based assessment of the prevalence of prevalence and risk factors for glaucoma in a district of Singapore, which allowed us to assess the prevalence of PXS in a representative Chinese adult population.2 This study was approved by the ethics review board of Singapore National Eye Centre. All subjects gave written, informed consent. A total of 2000 Chinese Singaporeans aged 40 years and …
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Paul J. Foster (2005) studied this question.