There are two types, lasik and lasek. lasik is where they make an incision in the cornea, to create a flap, they then use the laser to remove a layer of skin. lasek, is where they push the but of cornea to one side, rather than cutting it. I had lasek, and i have to say it was the best thing i ever did. I had no problems. I was very nervous going in, but everybody was very reassuring. You are awake for the procedure. The worst thing to me was the smell and the noise when the laser was turned on. I never felt the laser. They put a piece of surgical tape on your eyelashes to keep them out of the way, and taking that off was the worst part! I was able to see as soon as i sat up. My eyes were sensitive to light on the third day after surgery. Then it got better and better, within a week i had perfect sight. I would def recommend it!