title: Rates of posterior capsule rupture during cataract surgery among different races in Singapore.
abstract: BACKGROUND
  The aim of this study was to determine if racial differences exist in the rate of posterior capsule rupture (PCR) during cataract surgery in Singapore.
  
  
  METHODS
  All intraoperative complications during cataract surgery were prospectively reported as part of a clinical audit programme. A retrospective review of all patients who sustained a PCR during cataract surgery between July 1995 and December 1998 was performed.
  
  
  RESULTS
  Of 8230 consecutive eyes which underwent cataract surgery, 6951 (84.5%) were Chinese, 597 (7.3%) were Malay, 524 (6.4%) were Indian, and 158 (1.9%) were of other races. The overall incidence of PCR was 1.9%. The PCR rates were 1.8% [125 of 6951; 95% confidence interval (CI), 1.49 to 2.11] in Chinese, 2.0% (12 of 597; 95% CI, 1.01 to 3.57) in Malay, 2.7% (14 of 524; 95% CI, 1.13 to 3.56) in Indian, and 2.5% (4 of 158; 95% CI, 0.00 to 4.98) in other races. There was no statistical difference between the PCR rates (P = 0.62, chi-square test).
  
  
  CONCLUSIONS
  Racial differences in Singapore do not have an effect on the rates of PCR during cataract surgery.
authors.affiliation: The Eye Institute at Tan Tock Seng Hospital, National Healthcare Group, Singapore.
authors.forename: Fiona M
authors.initials: FM
authors.lastname: Chan
authors.forename: Ranjana
authors.initials: R
authors.lastname: Mathur
authors.forename: Jack J K
authors.initials: JJ
authors.lastname: Ku
authors.forename: Ching
authors.initials: C
authors.lastname: Chen
authors.forename: Siew Pang
authors.initials: SP
authors.lastname: Chan
authors.forename: Victor S H
authors.initials: VS
authors.lastname: Yong
authors.forename: Kah Guan
authors.initials: KG
authors.lastname: Au Eong
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D044466:Asian People / Q000235:genetics; D019923:Capsulorhexis / Q000009:adverse effects; D002387:Cataract Extraction / Q000009:adverse effects*; D005131:Eye Injuries / Q000208:ethnology / Q000209:etiology; D005260:Female; D006801:Humans; D015994:Incidence; D007431:Intraoperative Complications / Q000453:epidemiology*; D007903:Lens Capsule, Crystalline; D019654:Lens Implantation, Intraocular / Q000009:adverse effects*; D016015:Logistic Models; D008297:Male; D008485:Medical Audit; D008875:Middle Aged; D018918:Phacoemulsification / Q000009:adverse effects; D011446:Prospective Studies; D012189:Retrospective Studies; D012421:Rupture / Q000208:ethnology / Q000209:etiology*; D012846:Singapore / Q000453:epidemiology