title: Hyperopic laser-assisted in situ keratomileusis for radial keratotomy induced hyperopia.
abstract: OBJECTIVE
  To evaluate hyperopic laser in situ keratomileusis (H-LASIK) for radial keratotomy (RK)-induced hyperopia.
  
  
  METHODS
  Noncomparative interventional retrospective nonconsecutive case series.
  
  
  METHODS
  Sixty-nine eyes of 47 patients who had undergone RK and were seen with induced hyperopia.
  
  
  METHODS
  H-LASIK was performed with an excimer laser.
  
  
  METHODS
  The mean refractive error, in spherical equivalents (SE), uncorrected visual acuity (UCVA), and best spectacle-corrected visual acuity (BSCVA) before and after H-LASIK are reported. Safety was analyzed using a mean follow-up time of 6.6 plus minus 3.24 months.
  
  
  RESULTS
  Preoperative mean SE was +3.4 plus minus 1.6 diopters (D). Postoperative mean SE was -0.32 plus minus 1.2 D. A high percentage of eyes (79.7%; n = 55) were between plus minus1.0 D of emmetropia and 88% within plus minus 2.0 D. Preoperative BSCVA was 20/20 in 53.6% of eyes (n = 37) and 20/40 or better in 100% (n = 69). Postoperative BSCVA was 20/20 in 55% of eyes (n = 38) and 20/40 or better in 95.6% (n = 66) of eyes. Preoperative UCVA was less-than-or-equal20/50 in 52 cases (75.4%). Postoperative UCVA was 20/20 in 13 cases (18.8%) and greater-than-or-equal20/40 in 45 cases (65.2%). Four eyes lost 2 Snellen lines because of epithelial ingrowth in the interface (n = 3) and diffuse lamellar keratitis (Sands of the Sahara syndrome; n = 2). One of the eyes with Sahara syndrome also had epithelial ingrowth and flap necrosis. Thirteen eyes lost 1 Snellen line, and 50 eyes maintained or gained Snellen lines. The only intraoperative complication was incision opening (n = 8) while the flap was lifted; there were no further complications. These patients did not lose any Snellen lines of their BSCVA.
  
  
  CONCLUSIONS
  H-LASIK can be used successfully to correct RK-induced hyperopia.
authors.affiliation: Eye Clinic Day Hospital, Av. Republica do Líbano 1034, São Paulo, SP, CEP 04502-001, Brazil.
authors.forename: Cláudia M
authors.initials: CM
authors.lastname: Francesconi
authors.forename: Regina A M
authors.initials: RA
authors.lastname: Nosé
authors.forename: Walton
authors.initials: W
authors.lastname: Nosé
mesh_terms: D000328:Adult; D003315:Cornea / Q000601:surgery*; D005260:Female; D006801:Humans; D006956:Hyperopia / Q000209:etiology / Q000601:surgery*; D020731:Keratomileusis, Laser In Situ; D007646:Keratotomy, Radial / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000601:surgery; D012029:Refraction, Ocular; D012189:Retrospective Studies; D012449:Safety; D016896:Treatment Outcome; D014792:Visual Acuity