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Related Experiment Videos

Nidek MK 2000 microkeratome clinical evaluation.

Maria Clara Arbelaez1

  • 1Magrabi Eye and Ear Center, Muscat, Sultanate of Oman. maria_arbelaez@hotmail.com

Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|June 6, 2002
PubMed
Summary

The Nidek MK 2000 microkeratome reliably creates LASIK flaps, with consistent dimensions and thickness. Blade reuse for the second eye in LASIK procedures did not compromise flap quality.

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Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Ophthalmic Devices

Background:

  • Laser-Assisted In Situ Keratomileusis (LASIK) is a common refractive surgery procedure.
  • The microkeratome is a critical instrument for creating the corneal flap during LASIK.

Purpose of the Study:

  • To evaluate the performance of the Nidek MK 2000 automatic microkeratome.
  • Assess flap dimensions, thickness, hinge size, and cut quality with repeated blade use in LASIK.

Main Methods:

  • 328 consecutive LASIK procedures using the Nidek MK 2000 with 130/160-microm heads and 8.5/9.5-mm suction rings.
  • Microkeratome blade was reused for the second eye of the same patient.
  • Flap dimensions and hinge size measured microscopically; thickness assessed via ultrasonic pachymetry.

Main Results:

  • Mean flap thickness varied by head size (116.03 µm for 130-µm, 147.7 µm for 160-µm).
  • Vertical flap size correlated with suction ring diameter (8.56 mm for 8.5-mm, 9.45 mm for 9.5-mm).
  • Second cuts were thinner than first cuts (14.7-19.1 µm difference).

Conclusions:

  • The Nidek MK 2000 microkeratome demonstrated simplicity, safety, and predictability in LASIK.
  • The device proved reliable for flap creation in a large series of refractive surgery cases.

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