title: [Long-term clinical course of laser in situ keratomileusis--two year follow-up].
abstract: OBJECTIVE
  To evaluate the cases that were treated with laser in situ keratomileusis (LASIK) and who were follwed up for a full 2-year period without fail.
  
  
  METHODS
  LASIK was performed in 62 eyes of 35 patients between June 1997 and March 1999. Mean age was 29.1 years and the preoperative mean spherical equivalent refraction was -6.90 +/- 2.49 (mean +/- standard deviation) diopter (D). Five aspects were studied as follows.
  
  
  RESULTS
  1.
  
  
  RESULTS
  26 eyes (41.9%) gained 1 line or more in best corrected visual acuity. Twenty eyes (32.3%) were unchanged. Sixteen eyes(25.8%) lost 1 line. No eye lost 2 lines or more. The safety index was 1.04. 2.
  
  
  RESULTS
  The efficacy index was 0.85. 3. Predictability: Forty-eight eyes (77.4%) were predictable within +/- 0.5 D, and 55 eyes (88.7%) were within +/- 1.0 D. 4. Stability: Manifest refraction was relatively stable after 3 months. 5. Complication: No complications were experienced.
  
  
  CONCLUSIONS
  Our 2-year follow-up showed that postoperatively LASIK was safe and effective.
authors.affiliation: Department of Ophthalmology, Kitasato University School of Medicine, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Aizawa
authors.forename: Kimiya
authors.initials: K
authors.lastname: Shimizu
authors.forename: Motoi
authors.initials: M
authors.lastname: Nakanishi
authors.forename: Masanobu
authors.initials: M
authors.lastname: Suzuki
authors.forename: Koji
authors.initials: K
authors.lastname: Ohno
authors.forename: Mari
authors.initials: M
authors.lastname: Komatsu
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D008297:Male; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000503:physiopathology; D054140:Refractive Surgical Procedures; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D014792:Visual Acuity