How is the LASIK procedure performed with a microkeratome?
After the front of the eye is completely anesthetized with drops, the patient is positioned under the laser. A device called a vacuum ring is then attached to the front of the eye. This stabilizes the eye and temporarily raises the pressure to aid in the creation of a smooth flap. Next, the microkeratome guides itself across the vacuum ring thereby creating the flap. The microkeratome and vacuum ring are then removed, the corneal flap is folded aside and the laser treatment is applied to the bed underlying the flap. After the laser treatment is completed, the flap is replaced to its original position and allowed to seat for 2 minutes. During this time period the natural vacuum mechanism of the corneal tissue will hold the flap in place. Surface healing usually occurs within 12 hours thereby virtually eliminating any possibility of displacement of the flap. Antibiotic drops are then distilled and a protective rigid shield is placed over the eye. This entire procedure takes about ten min
