title: In vitro optical quality comparison of 2 trifocal intraocular lenses and 1 progressive multifocal intraocular lens.
abstract: OBJECTIVE
  To evaluate the optical quality of 3 multifocal intraocular lenses (IOLs): the Mini Well Ready progressive multifocal aspheric IOL, the AT LISA trifocal diffractive IOL, and the Finevision full diffractive trifocal IOL.
  
  
  METHODS
  University of Valencia, Valencia, Spain.
  
  
  METHODS
  Experimental study.
  
  
  METHODS
  An instrument designed for measuring real-time modulation transfer function (MTF) and IOL power was used to measure the optical quality of each IOL for 3.0 mm and 4.5 mm apertures. This instrument measures both sagittal and tangential MTFs. The optical quality of each IOL was evaluated with the MTF, through-focus MTF, defocus tolerance, Strehl ratio MTF, and relative percentage of light in each focus. These metrics were evaluated at best focus for each IOL.
  
  
  RESULTS
  Through-focus graphs corresponding to trifocal IOLs showed 3 mean peaks. Nevertheless, the progressive multifocal aspheric IOL showed 2 main areas, 1 corresponding to distance vision focus and the other including both intermediate and near vision foci.
  
  
  CONCLUSIONS
  The results obtained in the present study suggest that the progressive multifocal aspheric IOL might be considered for cataract surgery.
  
  
  BACKGROUND
  None of the authors has a financial or proprietary interest in any method or material mentioned.
authors.affiliation: From the Optometry Research Group, Department of Optics and Optometry and Science Vision, University of Valencia, Valencia, Spain. Electronic address: alberto.vicent@uv.es.
authors.forename: Alberto
authors.initials: A
authors.lastname: Domínguez-Vicent
authors.affiliation: From the Optometry Research Group, Department of Optics and Optometry and Science Vision, University of Valencia, Valencia, Spain.
authors.forename: Jose Juan
authors.initials: JJ
authors.lastname: Esteve-Taboada
authors.affiliation: From the Optometry Research Group, Department of Optics and Optometry and Science Vision, University of Valencia, Valencia, Spain.
authors.forename: Antonio J
authors.initials: AJ
authors.lastname: Del Águila-Carrasco
authors.affiliation: From the Optometry Research Group, Department of Optics and Optometry and Science Vision, University of Valencia, Valencia, Spain.
authors.forename: Daniel
authors.initials: D
authors.lastname: Monsálvez-Romin
authors.affiliation: From the Optometry Research Group, Department of Optics and Optometry and Science Vision, University of Valencia, Valencia, Spain.
authors.forename: Robert
authors.initials: R
authors.lastname: Montés-Micó
mesh_terms: D002387:Cataract Extraction; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008962:Models, Theoretical; D055620:Optical Phenomena; D055095:Optics and Photonics; D011474:Prosthesis Design; D012029:Refraction, Ocular / Q000502:physiology