title: LASIK flap buttonhole treated immediately by PRK with mitomycin C.
abstract: OBJECTIVE
  To describe the visual outcomes of three patients who had LASIK flap buttonhole and were treated immediately with photorefractive keratectomy (PRK) and topical mitomycin C (MMC) 0.02%.
  
  
  METHODS
  Three patients underwent bilateral LASIK with the SCHWIND Carriazo-Pendula 90 microm head microkeratome. In all three cases, a buttonhole flap occurred in the left eye. The flap was repositioned and phototherapeutic keratectomy for 50 microm was used for epithelial removal while immediate PRK with MMC was performed to treat the buttonhole flap.
  
  
  RESULTS
  Three months after the procedure, uncorrected distance visual acuity and corrected distance visual acuity were 20/20 with regular topographic findings.
  
  
  CONCLUSIONS
  Using PRK with MCC immediately after the occurrence of the LASIK flap buttonhole may be an effective treatment.
authors.affiliation: Institute of Vision and Optics, University of Crete, Greece.
authors.forename: George D
authors.initials: GD
authors.lastname: Kymionis
authors.forename: Dimitra M
authors.initials: DM
authors.lastname: Portaliou
authors.forename: Alexandra E
authors.initials: AE
authors.lastname: Karavitaki
authors.forename: Maria S
authors.initials: MS
authors.lastname: Krasia
authors.forename: Georgios A
authors.initials: GA
authors.lastname: Kontadakis
authors.forename: Aimilianos
authors.initials: A
authors.lastname: Stratos
authors.forename: Sonia H
authors.initials: SH
authors.lastname: Yoo
mesh_terms: D000328:Adult; D003315:Cornea / Q000473:pathology* / Q000601:surgery; D019781:Corneal Topography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000379:methods*; D008297:Male; D009216:Myopia / Q000473:pathology / Q000601:surgery*; D018903:Photorefractive Keratectomy / Q000009:adverse effects*; D012029:Refraction, Ocular; D012086:Reoperation / Q000379:methods; D013524:Surgical Flaps; D014792:Visual Acuity; D055815:Young Adult