title: Simultaneous laser in situ keratomileusis on the stromal bed and undersurface of the flap in eyes with high myopia and thin corneas.
abstract: OBJECTIVE
  To evaluate simultaneous laser in situ keratomileusis (LASIK) on the stromal bed and the undersurface of the flap in eyes with high myopia and insufficient corneal thickness for conventional LASIK ablation.
  
  
  METHODS
  21 Century Eye Hospital, Seoul Paik Hospital, Inje University, Seoul, Korea.
  
  
  METHODS
  Using intraoperative pachymetry, the residual stromal bed thickness was evaluated and simultaneous LASIK was performed on the stromal bed and undersurface of the flap without compromising the posterior 300 mum of the stromal bed. In a prospective series, outcomes in 43 eyes of 27 patients with mean spherical equivalent refraction ranging from -12.5 to -3.75 diopters were analyzed 1, 3, and 6 months after surgery.
  
  
  RESULTS
  Postoperative uncorrected visual acuity was 20/30 or better in 35 eyes (81.4%) at 1 month, 36 eyes (83.7%) at 3 months, and 34 eyes (79.1%) at 6 months. During surgery and follow-up, no vision-threatening complications occurred.
  
  
  CONCLUSIONS
  Simultaneous LASIK appears to be a useful surgical aid in LASIK treatment in eyes with high myopia with or without astigmatism when an adequate residual stromal bed does not exist.
authors.affiliation: 21C Eye Hospital, Seoul Paik Hospital, Inje University, Jeo-Dong, Jung-Gu, Seoul, Korea.
authors.forename: Myung-Jin
authors.initials: MJ
authors.lastname: Joo
authors.forename: Ye-Ni
authors.initials: YN
authors.lastname: Kim
authors.forename: Hyo-Chang
authors.initials: HC
authors.lastname: Hong
authors.forename: Dong-Kyu
authors.initials: DK
authors.lastname: Ryu
authors.forename: Jae-Ho
authors.initials: JH
authors.lastname: Kim
mesh_terms: D000328:Adult; D001251:Astigmatism / Q000150:complications / Q000503:physiopathology; D003315:Cornea / Q000473:pathology*; D003319:Corneal Stroma / Q000601:surgery*; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000009:adverse effects; D008875:Middle Aged; D009216:Myopia / Q000150:complications / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery*; D011379:Prognosis; D011446:Prospective Studies; D012029:Refraction, Ocular; D012720:Severity of Illness Index; D013524:Surgical Flaps; D014792:Visual Acuity