title: Contrast sensitivity and color perception with orange and yellow intraocular lenses.
abstract: OBJECTIVE
  To evaluate contrast sensitivity function (CSF) and color vision after implantation of either orange or yellow-tinted intraocular lenses (IOLs).
  
  
  METHODS
  Fifty-six eyes of 28 cataract patients who had bilateral implantation of orange-tinted (PC440Y Orange, Ophtec), yellow-tinted (AcrySof Natural SN60AT, Alcon), or clear (AcrySof SA60AT, Alcon) IOLs were examined. Six months postoperatively, monocular CSF under photopic and mesopic (with and without glare) conditions were measured using the Functional Visual Analyzer. Color discrimination was determined with the Farnsworth-Munsell 100-Hue test.
  
  
  RESULTS
  Patients implanted with orange-tinted, yellow-tinted, or clear IOLs displayed similar CSF values, with no statistically significant differences at any spatial frequency (p>0.05). There were no statistically significant differences in chromatic discrimination among the 3 groups of patients (p>0.05).
  
  
  CONCLUSIONS
  Orange or yellow blue-filtering IOL implantation is comparable to a clear IOL in terms of photopic and mesopic contrast sensitivity or color discrimination.
authors.affiliation: Refractive Surgery Department, Centro Oftalmológico Marqués de Sotelo, Valencia, Spain.
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Muñoz
authors.forename: Lurdes
authors.initials: L
authors.lastname: Belda-Salmerón
authors.forename: César
authors.initials: C
authors.lastname: Albarrán-Diego
authors.forename: Teresa
authors.initials: T
authors.lastname: Ferrer-Blasco
authors.forename: Antonio
authors.initials: A
authors.lastname: Fernández-Porrero
mesh_terms: D000368:Aged; D003118:Color Perception / Q000502:physiology*; D055253:Color Vision / Q000502:physiology; D015350:Contrast Sensitivity / Q000502:physiology*; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D055255:Mesopic Vision / Q000502:physiology; D018918:Phacoemulsification; D011446:Prospective Studies; D011474:Prosthesis Design; D014792:Visual Acuity / Q000502:physiology