In as little as 30 seconds, tiny pulses of laser light (a quadrillionth of a second each) form a layer of microscopic bubbles just beneath the surface of your eye that will create the corneal flap.
The layer size and shape are determined by your doctor and are computer controlled providing maximum precision.
Because it was created by a laser, this corneal flap is uniquely able to "lock" back in place after the procedure, allowing for rapid healing.