title: Pseudoexfoliation syndrome at a Singapore eye clinic.
abstract: BACKGROUND
  The purpose of this study was to investigate the demographics of pseudoexfoliation syndrome (PXF) and pseudoexfoliative glaucoma (PXG) in a Singapore hospital eye outpatient clinic.
  
  
  METHODS
  A retrospective study of 93 consecutive patients (146 eyes) with PXF was undertaken by a single ophthalmologist over a period of 37 months (July 1, 2006, to July 31, 2009).
  
  
  RESULTS
  Ninety-three (2.8%) of 3,297 patients seen during the study period were diagnosed with PXF. Forty-three (46.2%) of the 93 PXF patients were male. Indians were 5.04 times more likely to develop PXF than Chinese (P<0.001, 95% confidence interval 3.05-8.33), while Malays were 2.22 times more likely to develop PXF as compared with Chinese (P=0.029, 95% CI 1.08-4.55). Twenty-two (23.7%) of the 93 PXF patients had PXG at the time of diagnosis. There was no statistically significant difference in mean age between PXF and PXG patients. There was a larger proportion of males with PXG than females (P<0.001).
  
  
  CONCLUSIONS
  PXF is not infrequent in elderly Singapore eye clinic patients, and is more likely to occur in Indians than in Chinese. In the Singapore eye clinic setting, males may be more likely to develop PXG, although larger studies will be required to confirm this.
authors.affiliation: National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore.
authors.forename: Jason Kian Seng
authors.initials: JK
authors.lastname: Lee
authors.affiliation: National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore.
authors.forename: Elizabeth Poh Ying
authors.initials: EP
authors.lastname: Wong
authors.affiliation: National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore.
authors.forename: Su Ling
authors.initials: SL
authors.lastname: Ho
keywords: exfoliation glaucoma; exfoliation syndrome; glaucoma capsulare; pseudoexfoliation syndrome