title: Complications of Cataract Surgery in Iran: Trend from 2006 to 2010.
abstract: OBJECTIVE
  To determine intraoperative complications of cataract surgery over the period 2006 to 2010.
  
  
  METHODS
  In this cross-sectional study, 106 of 272 cataract surgical centers in Iran were selected through multistage random cluster sampling from all provinces. In each province, the selected number of centers was proportionate to the number of cataract surgeries, and in each center, the selected number of charts was proportionate to the center's number of cataract surgeries, from which we retrieved intraoperative complications.
  
  
  RESULTS
  The prevalence of intraoperative complications of cataract surgery was 5.04% (95% confidence interval, CI, 3.53-6.54%) in 2006, which decreased significantly to 3.44% (95% CI 1.84-5.04%) in 2010. The most common complication was posterior capsular rupture/vitreous loss which decreased from 4.29% (95% CI 2.93-5.66%) in 2006 to 2.81% (95% CI 1.3-4.31%) in 2010. The next most common complication was suprachoroidal hemorrhage at 0.56% (95% CI 0.25-0.87%) in 2006 and 0.46% (95% CI 0.3-0.62%) in 2010. The least common complication concerned intraocular lens (IOL)-drop. Complications were seen most with lensectomy, while phacoemulsification caused the least complications. Mean hospitalization time in uncomplicated cases was 0.59 days (95% CI 0.58-0.61 days) and in complicated cases 1.14 days (95% CI 1.07-1.20 days; p < 0.001).
  
  
  CONCLUSIONS
  Complications of cataract surgery in Iran had a decreasing trend during 2006-2010. However, results from 2010 indicate that cataract surgical complications still need to be focused on. Hospitalization was longer for cases with complications, and further reducing this could help decrease costs of cataract surgery.
authors.affiliation: a Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital , Tehran , Iran.
authors.forename: Hassan
authors.initials: H
authors.lastname: Hashemi
authors.affiliation: b Department of Epidemiology, Faculty of Public Health , Shahid Beheshti University of Medical Sciences , Tehran , Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Khabazkhoob
authors.affiliation: a Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital , Tehran , Iran.
authors.forename: Farhad
authors.initials: F
authors.lastname: Rezvan
authors.affiliation: b Department of Epidemiology, Faculty of Public Health , Shahid Beheshti University of Medical Sciences , Tehran , Iran.
authors.forename: Koroush
authors.initials: K
authors.lastname: Etemad
authors.affiliation: c Department of Public Health and Biostatistics, Faculty of Health , Kashan University of Medical Sciences , Kashan , Iran.
authors.forename: Hamidreza
authors.initials: H
authors.lastname: Gilasi
authors.affiliation: d Department of Epidemiology and Biostatistics , School of Public Health, Tehran University of Medical Sciences, International Campus (TUMS‑IC) , Tehran , Iran.
authors.forename: Soheila
authors.initials: S
authors.lastname: Asgari
authors.affiliation: a Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital , Tehran , Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Mahdavi
authors.affiliation: e Noor Ophthalmology Research Center , Noor Eye Hospital , Tehran , Iran.
authors.forename: Saman
authors.initials: S
authors.lastname: Mohazzab-Torabi
authors.affiliation: f Department of Epidemiology and Biostatistics , School of Public Health, Tehran University of Medical Sciences , Tehran , Iran.
authors.forename: Akbar
authors.initials: A
authors.lastname: Fotouhi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002387:Cataract Extraction / Q000009:adverse effects* / Q000639:trends*; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D007431:Intraoperative Complications / Q000453:epidemiology*; D007492:Iran / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence
keywords: Cataract surgery; Iran; Middle East; complication; rate