title: Laser in situ keratomileusis for treatment of residual myopia after photorefractive keratectomy.
abstract: OBJECTIVE
  To evaluate the results of laser in situ keratomileusis after photorefractive keratectomy.
  
  
  METHODS
  Eighty eyes of 80 patients with residual myopia after photorefractive keratectomy were reoperated with laser in situ keratomileusis. The study was retrospective. Laser in situ keratomileusis was performed using the automated corneal shaper microkeratome and Chiron Technolas 217-C d1 excimer laser. Data measured after laser in situ keratomileusis included uncorrected visual acuity, best-corrected visual acuity, refraction, haze, pachymetry, and keratometry. The follow-up was at least 12 +/- 1.6 months (range, 12 to 15 months).
  
  
  RESULTS
  After laser in situ keratomileusis the mean spherical equivalent was -0.24 diopters +/- 0.78. (range, -3 to +1.5) at 12 months, and the mean uncorrected visual acuity was 0.76 diopters +/- 0.24 (range, 0.1 to 1). Sixty-five eyes (81.3%) had various degrees of haze after laser in situ keratomileusis. One eye (1.2%) lost 2 lines of best-corrected visual acuity.
  
  
  CONCLUSIONS
  Laser in situ keratomileusis enhancement may be a good alternative to correct residual myopia and astigmatism after primary photorefractive keratectomy. Corneal haze is a common problem in these eyes, and the treatment after laser in situ keratomileusis enhancement should be the same as the treatment after primary photorefractive keratectomy.
authors.affiliation: Instituto Oftalmológico de Alicante, Department of Refractive Surgery, Division of Ophthalmology, Miguel Hernandez University, Alicante, Spain. jlalio@oftalio.com
authors.forename: J L
authors.initials: JL
authors.lastname: Alió
authors.forename: A
authors.initials: A
authors.lastname: Artola
authors.forename: W H
authors.initials: WH
authors.lastname: Attia
authors.forename: T F
authors.initials: TF
authors.lastname: Salem
authors.forename: J J
authors.initials: JJ
authors.lastname: Pérez-Santonja
authors.forename: M J
authors.initials: MJ
authors.lastname: Ayala
authors.forename: P
authors.initials: P
authors.lastname: Claramonte
authors.forename: J M
authors.initials: JM
authors.lastname: Ruiz-Moreno
mesh_terms: D000293:Adolescent; D000328:Adult; D003315:Cornea / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D054018:Lasers, Excimer; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000601:surgery*; D018903:Photorefractive Keratectomy; D012086:Reoperation; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity