title: [Clinical analysis of complications of LASIK using the WaveLight FS200 femtosecond laser].
abstract: OBJECTIVE
  To explore the incidence of intraoperative and early postoperative complications associated with the WaveLight FS200 femtosecond laser-assisted flap creation in LASIK surgery.
  
  
  METHODS
  A consecutive series of 400 patients (786 eyes) who underwent LASIK using the WaveLight FS200 femtosecond laser from March 2011 to December 2012 were included in this retrospective study. Intraoperative and early postoperative complications were described and analyzed.
  
  
  RESULTS
  The intraoperative complications included suction loss (two eyes, 0.25%), incomplete flap creation (one eye, 0.13%), severe opaque bubble layers (three eyes, 0.38%), anterior chamber gas bubbles (eight eyes, 1.02%), skip lines (12 eyes, 1.53%), and corneal epithelial defects (eight eyes, 1.02%). The early postoperative complications included canal bleeding (eight eyes, 1.02%), diffuse lamellar keratitis (23 eyes, 2.93%), haze (six eyes, 0.76% ), and flap dislocation (one eye, 0.13% ).
  
  
  CONCLUSIONS
  Intraoperative and early postoperative complications of LASIK using the WaveLight FS200 were relatively mild. All patients could obtain satisfactory clinical results with proper treatment.
authors.affiliation: Department of Ophthalmology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yueguo
authors.initials: Y
authors.lastname: Chen
authors.forename: Yingjie
authors.initials: Y
authors.lastname: Xia
mesh_terms: D000867:Anterior Chamber; D003319:Corneal Stroma / Q000293:injuries; D006801:Humans; D015994:Incidence; D007431:Intraoperative Complications / Q000453:epidemiology*; D007634:Keratitis / Q000453:epidemiology; D020731:Keratomileusis, Laser In Situ / Q000009:adverse effects* / Q000706:statistics & numerical data; D011183:Postoperative Complications / Q000453:epidemiology*; D012189:Retrospective Studies; D013524:Surgical Flaps