title: [Radial keratotomy for the treatment of Excimer laser undercorrections].
abstract: BACKGROUND
  Effectiveness of radial keratotomy for undercorrections following photorefractive keratectomy.
  
  
  METHODS
  Twenty myopic eyes from minus 4.75 to minus 8.25 were treated by Excimer laser photorefractive keratectomy and regressed to a mean myopic refraction of minus 2.20 +/- 0.81 after a follow-up of 10 to 22 months (mean: 16.25). Radial keratotomy was performed using Hoffmann Fyodorov Thornton nomogram. Blade depth was set according to pachymetry performed before surgery under microscopic examination, paracentrally on the meridian of each incision.
  
  
  RESULTS
  Postoperative results were evaluated after 6 to 20 months follow-up. After radial keratotomy mean refractive error was minus 0.30 +/- 0.43 and minus 0.32 +/- 0.25 at 3-6 and 6-12 months respectively. Visual acuity, without correction, was prior to radial keratotomy: 2.18 +/- 0.99; 8.125 +/- 0.6 at 3-6 months and 8.43 +/- 1.57 at 6-12 months after radial keratotomy.
  
  
  CONCLUSIONS
  Radial keratotomy appears to be a safe, simple and predictible technique to treat undercorrections following Excimer laser photokeratectomy.
authors.affiliation: Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, Paris.
authors.forename: Y M
authors.initials: YM
authors.lastname: Ruellan
authors.forename: J C
authors.initials: JC
authors.lastname: Rigal-Sastourne
authors.forename: H
authors.initials: H
authors.lastname: Hamard
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007646:Keratotomy, Radial; D054018:Lasers, Excimer; D008297:Male; D009216:Myopia / Q000601:surgery*; D018903:Photorefractive Keratectomy / Q000009:adverse effects*; D012086:Reoperation; D015203:Reproducibility of Results; D013997:Time Factors; D014792:Visual Acuity
vernacular_title: Kératotomie radiaire pour le traitement des sous-corrections après le laser Excimer.