title: Comparison of laser in situ keratomileusis outcomes with the Nidek EC-5000 and LSX LaserSight excimer lasers.
abstract: OBJECTIVE
  To report the results of laser in situ keratomileusis (LASIK) for myopia with and without astigmatism using the Nidek EC-5000 and LaserSight LSX excimer laser systems.
  
  
  METHODS
  A retrospective analysis of refractive outcomes with each laser was conducted. Approximately 2,900 myopic and astigmatic treatments up to -10.00 D (spherical equivalent refraction) were analyzed using refractive outcomes analysis software.
  
  
  RESULTS
  At 6 months postoperatively, 78% of patients treated with the Nidek EC-5000 laser and 53% of patients treated with the LaserSight LSX laser were within +/-0.50 D of the intended correction.
  
  
  CONCLUSIONS
  A difference in safety, stability, and efficacy of LASIK was found that favored the Nidek EC-5000 excimer laser.
authors.affiliation: University of Western Ontario, London, Canada.
authors.forename: M
authors.initials: M
authors.lastname: Merchea
authors.forename: A
authors.initials: A
authors.lastname: Tokarewicz
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001251:Astigmatism / Q000601:surgery*; D003319:Corneal Stroma / Q000601:surgery*; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000295:instrumentation* / Q000379:methods; D008875:Middle Aged; D009216:Myopia / Q000601:surgery*; D011183:Postoperative Complications; D012029:Refraction, Ocular; D012189:Retrospective Studies; D012449:Safety; D013524:Surgical Flaps; D016896:Treatment Outcome; D014792:Visual Acuity