title: Functional outcomes and patient satisfaction after laser in situ keratomileusis for correction of myopia.
abstract: OBJECTIVE
  To determine subjective patient satisfaction and self-perceived quality of vision after laser in situ keratomileusis (LASIK) to correct myopia and myopic astigmatism.
  
  
  METHODS
  Department of Ophthalmology, Academic Hospital Maastricht, Maastricht, The Netherlands.
  
  
  METHODS
  A validated questionnaire consisting of 66 items was self-administered by 142 consecutive patients. Seven scales covering a specific aspect of quality of vision were formulated. Aspects included global satisfaction, quality of uncorrected and corrected vision, quality of night vision, glare, daytime driving, and night driving. Main outcome measures were responses to individual questions and scale scores, and correlations with clinical parameters including refractive outcome, uncorrected visual acuity, best corrected visual acuity, ablation depth, and scotopic pupil-optical zone disparity were obtained.
  
  
  RESULTS
  The mean score for the overall satisfaction was 4.1 +/- 0.71 (SD) (scale 0 to 5.0). A total of 92.2% of patients were satisfied or very satisfied with their surgery, 93.6% considered their main goal of surgery achieved, and 92.3% would choose to have LASIK surgery again. Satisfaction with uncorrected vision was 3.03 +/- 0.71. The mean score for glare was 3.0 +/- 0.9. At night, glare from lights was believed to be more important than before surgery by 47.2%. Glare from oncoming car headlights after surgery was reported by 58.4% and was believed to be more bothersome for night driving than before surgery by 52.8%. Night driving was rated more difficult than before surgery by 39.4%, whereas 59.3% had less difficulty driving at night. There was a significant correlation between the uncorrected vision score and the postoperative spherical equivalent (r = 0.245) and postoperative astigmatism (r = 0.265). There was no correlation between the glare or night vision scores and the degree of correction, the amount of ablation depth, or the disparity between the scotopic pupil and the optical zone.
  
  
  CONCLUSIONS
  Self-perceived uncorrected vision after LASIK surgery for the correction of myopia and myopic astigmatism appears to be very good and is related to the postoperative residual error. Although the majority of patients postoperatively experienced glare, particularly with driving at night, this was not related to the pupil-optical zone disparity or degree of correction.
authors.affiliation: Department of Ophthalmology, Academic Hospital Maastricht, Maastricht, The Netherlands. nta@soog.azm.nl
authors.forename: Nayyirih G
authors.initials: NG
authors.lastname: Tahzib
authors.forename: Sander J
authors.initials: SJ
authors.lastname: Bootsma
authors.forename: Fred A G J
authors.initials: FA
authors.lastname: Eggink
authors.forename: Vaishali A
authors.initials: VA
authors.lastname: Nabar
authors.forename: Rudy M M A
authors.initials: RM
authors.lastname: Nuijts
mesh_terms: D000328:Adult; D000368:Aged; D001251:Astigmatism / Q000150:complications / Q000503:physiopathology* / Q000523:psychology / Q000601:surgery*; D001334:Automobile Driving; D003261:Contact Lenses; D019781:Corneal Topography; D003624:Darkness; D005139:Eyeglasses; D019466:Glare; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000009:adverse effects; D008875:Middle Aged; D009216:Myopia / Q000150:complications / Q000503:physiopathology* / Q000523:psychology / Q000601:surgery*; D009755:Night Blindness / Q000209:etiology; D017060:Patient Satisfaction; D011680:Pupil; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D014785:Vision, Ocular