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Experience with the Nidek MK-2000 microkeratome in 1,220 cases
1Ophthalmology Centre, MEDI Medical Association, Saint-Petersburg, Russia. karen@medi.spd.ru
Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|April 24, 2001
Summary
The Nidek MK-2000 microkeratome demonstrated safe and predictable performance in 1,220 LASIK procedures. Minor epithelial shrinkage occurred in some cases, but overall flap quality was excellent.
Area of Science:
- Ophthalmology
- Refractive Surgery
Background:
- Laser-Assisted In Situ Keratomileusis (LASIK) is a common refractive surgery.
- Microkeratomes are essential instruments for creating corneal flaps during LASIK.
Purpose of the Study:
- To evaluate the clinical performance and safety of the Nidek MK-2000 microkeratome.
- Assess the quality of corneal flaps created by the Nidek MK-2000.
Main Methods:
- The Nidek MK-2000 was used in 1,220 LASIK cases with the Nidek EC-5000 excimer laser.
- Flaps were created using 130- or 160-microm plates and 8.5- or 9.5-mm rings.
- Vacuum levels and flap hinge placement were adjusted as needed.
Main Results:
- Excellent flap edge and corneal surface quality were observed in all cases.
- No free flaps occurred; one case was aborted due to flap formation issues.
- Flap diameter and thickness were consistent with manufacturer specifications; vacuum was stable.
Conclusions:
- The Nidek MK-2000 microkeratome is easy to use, predictable, and safe for LASIK.
- Suggested modifications include adjustable head movement and an additional 9.0-mm suction ring.