title: [Topographically-guided photorefractive keratectomy for the management of secondary hyperopia following radial keratectomy].
abstract: OBJECTIVE
  To describe a topographically guided photorefractive keratectomy technique for the management of secondary hyperopia following radial keratectomy.
  
  
  METHODS
  A retrospective study was carried out in patients where a topographically guided photorefractive keratectomy technique was performed for the management of secondary hyperopia following radial keratectomy. The patients had preoperatively at least 3 diopters of hyperopia. The minimum follow-up was 3 months.
  
  
  RESULTS
  Twenty-four eyes of 21 patients were evaluated. The mean age was 45.54+/-6.03 years (range 36 to 55 years). The average follow-up was 7.71+/-4.6 months (range 3 to 17 months). Preoperatively the average spherical equivalent was +3.92+/-1.57 (range +1.25 D to +7.75 D), and postoperatively it was -0.29+/-1.43 (range -3.75 D to +2.50 D) (p<0.01). Visual acuity of 20/25 or better was achieved in 45.83% of the eyes, 20/40 or better in 83.33% and 20/60 or better in 100%. All patients were satisfied with the results and stated subjective improvement in visual quality.
  
  
  CONCLUSIONS
  Considering that it is a retreatment procedure performed in unstable and irregular corneas with high degrees of hyperopia, topographically guided photorefractive keratectomy showed good results and was safe and effective for the management of secondary hyperopia following radial keratectomy.
authors.affiliation: Hospital de Olhos Sadalla Amin Ghanem HOSAG, Joinville, SC, Brazil. vcghanem@hotmail.com
authors.forename: Vinícius Coral
authors.initials: VC
authors.lastname: Ghanem
authors.forename: Ramon Coral
authors.initials: RC
authors.lastname: Ghanem
authors.forename: Emir Amin
authors.initials: EA
authors.lastname: Ghanem
authors.forename: Denise Caon de
authors.initials: DC
authors.lastname: Souza
authors.forename: Giselle Caon de
authors.initials: GC
authors.lastname: Souza
mesh_terms: D000328:Adult; D019781:Corneal Topography / Q000379:methods*; D005260:Female; D006801:Humans; D006956:Hyperopia / Q000209:etiology / Q000601:surgery*; D054018:Lasers, Excimer / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D018903:Photorefractive Keratectomy / Q000009:adverse effects / Q000379:methods* / Q000592:standards; D012016:Reference Values; D012086:Reoperation; D012189:Retrospective Studies; D013997:Time Factors; D014792:Visual Acuity / Q000502:physiology
vernacular_title: Ceratectomia fotorrefrativa baseada em topografia para correção da hipermetropia secundária à ceratotomia radial.