title: Risk factors for intraocular pressure rise following phacoemulsification.
abstract: OBJECTIVE
  This study was designed to analyze the risk factors resulting in high intraocular pressure (IOP), which was accepted as IOP higher than 22 mmHg, following uncomplicated phacoemulsification.
  
  
  METHODS
  The records of 812 eyes of 584 patients who underwent uncomplicated phacoemulsification were evaluated. There were 330 men and 254 women ranging between the age of 26 and 89 years (65.4 ± 9.8 years). The preoperative, postoperative first day (day 1), first week (day 7), and first month (day 30) IOP values were analyzed. Data on history of diabetes, glaucoma, pseudoexfoliation (PXF), incision site, capsular staining with trypan blue, and surgeon were recorded. A multinomial regression analysis was performed to analyse the relationship of the factors with postoperative high IOP.
  
  
  RESULTS
  The mean IOP was 15.6 ± 4.3 mmHg preoperatively. Postoperatively that were changed to 19.7 ± 9.0 mmHg at day 1, 12.7 ± 4.5 mmHg at day 7, and 12.8 ± 3.7 mmHg at day 30. The factors such as surgeon, presence of PXF, diabetes, surgical incision site, and trypan blue were not related to the postoperative high IOP (P > 0.05, in all). The only factor that related to high IOP at all visits was glaucoma (P < 0.005).
  
  
  CONCLUSIONS
  According to our results, preoperative diagnosis of glaucoma seems to be the only factor to affect the postoperative IOP higher than 22 mmHg.
authors.affiliation: Department of Ophthalmology, Baskent University, Ankara, Turkey.
authors.forename: Muge
authors.initials: M
authors.lastname: Coban-Karatas
authors.forename: Selcuk
authors.initials: S
authors.lastname: Sizmaz
authors.forename: Rana
authors.initials: R
authors.lastname: Altan-Yaycioglu
authors.forename: Handan
authors.initials: H
authors.lastname: Canan
authors.forename: Yonca Aydin
authors.initials: YA
authors.lastname: Akova
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002386:Cataract / Q000150:complications*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007429:Intraocular Pressure / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D009798:Ocular Hypertension / Q000453:epidemiology* / Q000209:etiology / Q000503:physiopathology; D018918:Phacoemulsification / Q000009:adverse effects*; D011184:Postoperative Period; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D014065:Tonometry, Ocular; D014421:Turkey / Q000453:epidemiology; D014792:Visual Acuity