title: Corneal ectasia secondary to LASIK after arcuate keratotomy.
abstract: OBJECTIVE
  To present a case of corneal ectasia after LASIK in a patient with previous arcuate keratotomy.
  
  
  METHODS
  Case report.
  
  
  RESULTS
  The patient underwent arcuate keratotomy in both eyes in 1997 for with-the-rule regular hyperopic astigmatism and uneventful bilateral LASIK for residual astigmatism 5 years later. Visual acuity and refraction remained stable for 5 years, when the patient noticed worsening visual acuity. Corneal topography showed progressive inferior steepening, confirming the diagnosis of ectasia. Corneal high-resolution optical coherence tomography revealed a normal LASIK flap. The patient had no risk factors for corneal ectasia other than previous incisional surgery.
  
  
  CONCLUSIONS
  This case suggests that isolated arcuate keratotomy can be a significant risk factor for the development of corneal ectasia after LASIK.
authors.affiliation: Sadalla Amin Ghanem Eye hospital, Joinville, Brazil. ramonghanem@gmail.com
authors.forename: Ramon C
authors.initials: RC
authors.lastname: Ghanem
authors.forename: Marcielle A
authors.initials: MA
authors.lastname: Ghanem
authors.forename: Ayla
authors.initials: A
authors.lastname: Bogoni
authors.forename: Vinícius C
authors.initials: VC
authors.lastname: Ghanem
mesh_terms: D000328:Adult; D001251:Astigmatism / Q000150:complications / Q000601:surgery*; D003315:Cornea / Q000473:pathology*; D019781:Corneal Topography; D003937:Diagnosis, Differential; D004108:Dilatation, Pathologic / Q000175:diagnosis / Q000209:etiology; D005260:Female; D006801:Humans; D006956:Hyperopia / Q000150:complications / Q000601:surgery*; D020731:Keratomileusis, Laser In Situ / Q000009:adverse effects*; D007646:Keratotomy, Radial / Q000009:adverse effects*; D011183:Postoperative Complications; D012029:Refraction, Ocular; D012086:Reoperation; D014792:Visual Acuity