title: Correlation between keratometric and refractive astigmatism in pseudophakic eyes.
abstract: OBJECTIVE
  To determine the correlation between refractive and keratometric astigmatism in pseudophakic eyes.
  
  
  METHODS
  Vissum Madrid, Madrid, Spain.
  
  
  METHODS
  Case series.
  
  
  METHODS
  Consecutive eyes that had phacoemulsification with intraocular lens implantation during the first quarter of 2003 were evaluated. The refractive and keratometric astigmatism were compared 2 months postoperatively.
  
  
  RESULTS
  The mean postoperative keratometric astigmatism (0.91 diopter [D] ± 0.67 [SD]) in the 121 eyes was statistically significantly higher than the mean postoperative refractive astigmatism (0.64 ± 0.72 D) (P<.0001). Regression analysis found a significant correlation between the refractive and keratometric errors of the J0 component (P<.001, r(2) = 0.29) and between the refractive and keratometric errors of the J45 component (P<.001, r(2) = 0.36)
  
  
  CONCLUSIONS
  Keratometric astigmatism was responsible for about 30% of the refractive astigmatism in pseudophakic eyes. Other undetermined factors induce astigmatism in these cases.
authors.affiliation: Vissum Madrid, Madrid, Spain.
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Teus
authors.forename: Carolina
authors.initials: C
authors.lastname: Arruabarrena
authors.forename: José L
authors.initials: JL
authors.lastname: Hernández-Verdejo
authors.forename: Andrea
authors.initials: A
authors.lastname: Sales-Sanz
authors.forename: Marco
authors.initials: M
authors.lastname: Sales-Sanz
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000503:physiopathology*; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D019591:Pseudophakia / Q000503:physiopathology*; D012029:Refraction, Ocular / Q000502:physiology*; D016037:Single-Blind Method