title: Visual simulation through different intraocular lenses in patients with previous myopic corneal ablation using adaptive optics: effect of tilt and decentration.
abstract: OBJECTIVE
  To evaluate visual quality differences between intraocular lenses (IOLs) in patients with previous myopic laser ablations and assess the impact of IOL decentration and tilt on visual quality.
  
  
  METHODS
  University of Valencia, Burjassot, Spain.
  
  
  METHODS
  Cohort study.
  
  
  METHODS
  An adaptive optics visual simulator was used to simulate the wavefront aberration pattern of 1 aberration-correcting IOL (Acrysof IQ SN60WF), 1 aberration-free IOL (Akreos Adapt AO), and 1 spherical IOL (Triplato) under 5 IOL situations: centered, 0.2 mm and 0.4 mm decentered, and 2 degrees and 4 degrees tilted in eyes with simulated low or high myopic laser corneal ablations. Monocular distance visual acuity at 100%, 50%, and 10% contrast were measured.
  
  
  RESULTS
  Ten eyes of 10 patients were evaluated. When the IOLs were centered, the aberration-correcting IOL provided the best visual quality results in both groups. When the IOLs were misaligned, there was a decrease of visual quality with all simulated IOLs except the aberration-free IOL in the high myopia group. In the misaligned situations, all simulated IOLs obtained comparable visual quality results in both groups.
  
  
  CONCLUSIONS
  The results suggest that in patients with previous myopic laser corneal ablation, aberration-correcting IOLs should be implanted. The decrease in visual quality when these IOLs are decentered or tilted demonstrates the importance of accurate implantation of these IOLs.
  
  
  BACKGROUND
  No author has a financial or proprietary interest in any material or method mentioned.
authors.affiliation: Optics Department, Faculty of Physics, University of Valencia, Burjassot, Spain. david.madrid@uv.es
authors.forename: David
authors.initials: D
authors.lastname: Madrid-Costa
authors.forename: Caridad
authors.initials: C
authors.lastname: Pérez-Vives
authors.forename: Javier
authors.initials: J
authors.lastname: Ruiz-Alcocer
authors.forename: César
authors.initials: C
authors.lastname: Albarrán-Diego
authors.forename: Robert
authors.initials: R
authors.lastname: Montés-Micó
mesh_terms: D057128:Aberrometry; D000328:Adult; D060437:Artificial Lens Implant Migration / Q000503:physiopathology*; D015331:Cohort Studies; D003319:Corneal Stroma / Q000601:surgery*; D057108:Corneal Wavefront Aberration / Q000628:therapy; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000379:methods*; D054018:Lasers, Excimer / Q000627:therapeutic use*; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D009216:Myopia / Q000601:surgery*; D010775:Photic Stimulation; D014792:Visual Acuity / Q000502:physiology*; D055815:Young Adult