title: Refractive outcome of Nidek OPD-scan customized ablations.
abstract: OBJECTIVE
  Custom ablation is an improved refractive laser treatment that aims to optimize the optical system of the eye. We report preliminary results of laser in situ keratomileusis (LASIK) using customized ablation and the Nidek OPD-Scan.
  
  
  METHODS
  We report a prospective, non-comparative interventional case series. After OPD-Scan analysis, patients underwent LASIK. Eighty-four eyes were included: 44 eyes were treated with Flex Scan, 22 eyes with customized ablation based on Nidek OPD-Scan analysis, and 18 eyes were treated with conventional (scanning slit) ablation.
  
  
  RESULTS
  Visual outcome did not differ among groups. No patient experienced a significant decrease (more than 1 Snellen line) in best spectacle-corrected visual acuity.
  
  
  CONCLUSIONS
  LASIK with the Nidek OPD-Scan system was safe and effective in this small group of patients.
authors.affiliation: Excimer Laser Hospital Santa Cruz, São Paulo, Brazil. kozonakano@uol.com.br
authors.forename: Kozo
authors.initials: K
authors.lastname: Nakano
authors.forename: Waldir
authors.initials: W
authors.lastname: Portellinha
authors.forename: Marivaldo
authors.initials: M
authors.lastname: Oliveira
authors.forename: Lenio
authors.initials: L
authors.lastname: Alvarenga
authors.forename: Celso
authors.initials: C
authors.lastname: Nakano
authors.forename: Eliane
authors.initials: E
authors.lastname: Nakano
mesh_terms: D003315:Cornea / Q000601:surgery; D019781:Corneal Topography / Q000379:methods; D005260:Female; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000379:methods*; D008297:Male; D011446:Prospective Studies; D012029:Refraction, Ocular; D054140:Refractive Surgical Procedures; D012449:Safety; D016896:Treatment Outcome; D014792:Visual Acuity