title: Five-year results of laser in-situ keratomileusis (LASIK) after penetrating keratoplasty.
abstract: OBJECTIVE
  To study the long-term refractive results of LASIK after penetrating keratoplasty.
  
  
  METHODS
  Clinica Barraquer de América.
  
  
  METHODS
  Retrospective review of 46 eyes of 38 patients that underwent LASIK for the correction of refractive errors after penetrating keratoplasty.
  
  
  RESULTS
  The mean interval between keratoplasty and LASIK was 7 years. The preoperative defocus equivalent refraction (DEQ) was 2.0 to 7.0 D in 56% (26/46) of eyes and 8.0 to 24.0 D in the remaining 20 eyes. Five years after LASIK, DEQ was 1.0 to 7.0 D in all eyes. Seventy-five percent of eyes had a refractive error within 2.00 D of emmetropia. Thirty-two percent had uncorrected visual acuity of 20/40 or better, and 59% of eyes gained more than 1 line of best spectacle-corrected visual acuity at 5 years. Vector analysis showed a success index of 60% at 5 years. The refraction in eyes with keratoconus remained stable.
  
  
  CONCLUSIONS
  LASIK is safe and effective for the correction of refractive errors in eyes that have previously undergone corneal transplantation.
authors.affiliation: Department of Refractive Surgery, Instituto Barraquer de América, Bogotá, Colombia.
authors.forename: Carmen
authors.initials: C
authors.lastname: Barraquer C
authors.forename: Tomás
authors.initials: T
authors.lastname: Rodriguez-Barraquer
mesh_terms: D000293:Adolescent; D000328:Adult; D003315:Cornea / Q000601:surgery*; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D015948:Keratoplasty, Penetrating; D008875:Middle Aged; D011183:Postoperative Complications; D054140:Refractive Surgical Procedures; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity