title: Color vision after laser in situ keratomileusis.
abstract: OBJECTIVE
  To evaluate the effect of laser in situ keratomileusis (LASIK) on color vision.
  
  
  METHODS
  Department of Ophthalmology, China Medical College Hospital, Taichung, Taiwan.
  
  
  METHODS
  This prospective study comprised consecutive patients having LASIK. Patients were eligible for inclusion if they had a best corrected visual acuity of 20/20 or better and a normal color vision test preoperatively and an uncorrected near visual acuity of 20/40 or better postoperatively. Color vision was tested using the Farnsworth-Munsell 100-hue test (FM 100 test) preoperatively and 1 day, 1 week, and 1 month postoperatively.
  
  
  RESULTS
  Twenty-nine eyes of 15 patients having LASIK were enrolled in the study. The mean patient age was 29.2 years +/- 2.9 (SD). The mean preoperative spherical equivalent refractive error was -5.6 +/- 1.8 diopters, and the mean preoperative error score of the FM 100 test was 3.79 +/- 1.55. After surgery, no significant change in the error score was observed at 1 day (4.30 +/- 1.07, P =.1039, paired t test), 1 week (3.72 +/- 1.25, P =.8125, paired t test), or 1 month (3.97 +/- 1.29, P =.6149, paired t test).
  
  
  CONCLUSIONS
  Laser in situ keratomileusis did not affect color vision evaluated by the FM 100 test.
authors.affiliation: Department of Ophthalmology, China Medical College Hospital, Taichung, Taiwan.
authors.forename: Y Y
authors.initials: YY
authors.lastname: Tsai
authors.forename: J M
authors.initials: JM
authors.lastname: Lin
mesh_terms: D000328:Adult; D003118:Color Perception / Q000502:physiology*; D003119:Color Perception Tests; D003315:Cornea / Q000601:surgery; D005260:Female; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D008297:Male; D009216:Myopia / Q000601:surgery; D011446:Prospective Studies; D013524:Surgical Flaps; D014792:Visual Acuity