AIM: To evaluate actual versus expected laser in situ keratomileusis
(LASIK) flap thickness using the Mona M2.130 microkeratome head.
METHODS: 50 eyes of 25 patients scheduled for LASIK surgery for
myopia where enrolled in this study Patients were prepared for surgery.
On the day of surgery they were admitted to the LASIK room where the
lids were sterilized and draped. A suction lid speculum was applied to
one eye after instilling one drop of Benox into the conjunctival sac, the
eye was then washed with balanced salt solution BSS and the suction of
the lid speculum activated to assure there was no excess BSS in the conjunctival
sac then a final preoperative ultrasonic central corneal pachymetry
reading using the sterile probe of the Tomey AL-2000 .pachymer was
recorded. The suction ring of the Mona M2 milcroketatome was centered
on the cornea and immediately after the lasik flap was fashioned and the
suction ring removed the flap was elevated then an intra operative central
stromal bed pachmetry reading was recorded using the sterile Tomey AL-
2000 pachymer probe. The actual flap thickness was calculated by subtracting
the intra operative central stromal thickness from the preoperative
central corneal thickness. |
