title: One-year results of custom laser epithelial keratomileusis with the Nidek system.
abstract: OBJECTIVE
  To evaluate long-term results of custom laser epithelial keratomileusis (LASEK) for correction of myopia and hyperopia using the Custom Ablation Transition Zone (CATz) software and hyaluronic acid masking fluid (Laservis) for final corneal smoothing.
  
  
  METHODS
  We conducted a prospective study of 297 eyes of 167 patients. All eyes had LASEK for correction of myopia or hyperopia. The Nidek EC-5000 excimer laser, FinalFit software, and CATz ablation profile was used in all eyes. Laservis was used as masking fluid to remove corneal micro-irregularities during the final phase of the treatment.
  
  
  RESULTS
  Mean preoperative spherical equivalent refraction was -5.46 +/- 2.57 D (range -14.13 to +3.50 D). At 1 year after LASEK, mean spherical equivalent refraction was -0.15 +/- 0.50 D (range -4.00 D to +1.00 D).
  
  
  CONCLUSIONS
  LASEK with the Nidek EC-5000 excimer laser, FinalFit and Custom Ablation Transition Zone (CATz) software, with corneal smoothing, was safe and effective at 1 year after surgery.
authors.affiliation: Department of Ophthalmology, Istituto Clinico Humanitas, Rozzano-Milano, Italy. pvinciguerra@vincieye.it
authors.forename: Paolo
authors.initials: P
authors.lastname: Vinciguerra
authors.forename: Fabrizio I
authors.initials: FI
authors.lastname: Camesasca
authors.forename: Ingrid M
authors.initials: IM
authors.lastname: Torres
mesh_terms: D000328:Adult; D000465:Algorithms; D019573:Epithelium, Corneal / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006956:Hyperopia / Q000503:physiopathology / Q000601:surgery*; D049008:Keratectomy, Subepithelial, Laser-Assisted / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000503:physiopathology / Q000601:surgery*; D011379:Prognosis; D011446:Prospective Studies; D012029:Refraction, Ocular / Q000502:physiology; D012449:Safety