title: [Associations between color perception and optic nerve disk drusen].
abstract: The aim of this study was to determine the association between color perception determined by maximum color contrast sensitivity and Farnsworth-Munsell 100-hue tests and visual acuity in the presence of optic nerve disk drusen.
  
  
  METHODS
  A case-control study, including 137 persons, was performed. Thirty-seven patients (67 eyes) with optic nerve disk drusen and 100 healthy controls (200 eyes) were examined. For visual acuity testing, a typical Snellen chart (the direction of the gap in Landolt C) was used. A computerized Farnsworth-Munsell 100-hue test and maximum color contrast sensitivity programs were used for color discrimination.
  
  
  RESULTS
  The results of maximum color contrast sensitivity test, and the Farnsworth-Munsell 100-hue test were better in healthy controls than patients (1.94 ± 0.66 vs. 2.2 ± 0.85, P=0.02; 94.1 ± 53.9 vs. 120.6 ± 61, P=0.003, respectively).
  
  
  CONCLUSIONS
  The study revealed that the presence of optic nerve disk drusen was associated with decreased perception of colors.
authors.affiliation: Department of Ophthalmology, Medical Academy, Lithuanian University of Health Sciences, Eivenių 2, 50028 Kaunas, Lithuania. rliutkeviciene@gmail.com
authors.forename: Rasa
authors.initials: R
authors.lastname: Liutkevičienė
authors.forename: Dalia
authors.initials: D
authors.lastname: Zaliūnienė
authors.forename: Daiva
authors.initials: D
authors.lastname: Stanislovaitienė
authors.forename: Vytautas
authors.initials: V
authors.lastname: Jašinskas
mesh_terms: D016022:Case-Control Studies; D003118:Color Perception; D003117:Color Vision Defects / Q000209:etiology; D006801:Humans; D015594:Optic Disk Drusen / Q000503:physiopathology*