title: The Nidek MK-2000 microkeratome system.
abstract: OBJECTIVE
  To assess flap thickness and the performance of the Nidek MK-2000 microkeratome during laser in situ keratomileusis (LASIK).
  
  
  METHODS
  Three hundred seventy consecutive eyes of patients undergoing LASIK had the depth of flaps measured via subtractive pachymetry. All flaps were created using two different model numbers of the Nidek MK-2000 microkeratome. Both 130-microm and 160-microm depth plates were evaluated. Microkeratome-induced complications were also recorded.
  
  
  RESULTS
  Buttonhole flaps and free flaps were not seen in this study. One short flap occurred and suction could not be obtained in two eyes. The mean flap thickness obtained using the 130-microm depth plate for model number 121 was 129 +/- 21.8 microm. The mean flap thickness obtained using the 160-microm depth plate for model number 121 was 150 +/- 29.6 microm. The mean flap thickness obtained using the 130-microm depth plate for model number 65 was 152 +/- 25 microm. The mean flap thickness obtained using the 160-microm depth plate for model number 65 was 173 +/- 26.9 microm.
  
  
  CONCLUSIONS
  The Nidek MK-2000 microkeratome is safe and creates flaps of predictable thickness.
authors.affiliation: Revision Advanced Laser Eye Center, Columbus, Ohio, USA. schumer@revisioneyes.com
authors.forename: D J
authors.initials: DJ
authors.lastname: Schumer
authors.forename: H S
authors.initials: HS
authors.lastname: Bains
mesh_terms: D000886:Anthropometry; D003319:Corneal Stroma / Q000033:anatomy & histology* / Q000601:surgery; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000295:instrumentation*; D009216:Myopia / Q000601:surgery*; D013524:Surgical Flaps