I had Advanced Surface Ablation done by Dr. Beran. It's basically a newer PRK procedure. Had to go this route due to thin corneas. It takes longer to for your vision to completely stabilize but it worked out for me. I did one eye at a time since you have to keep it bandaged over the weekend and the time it takes for your vision to clear. Don't get me wrong, it was ten times better after the surgery just not 20/20 yet. Mine actually ended up 20/15 in both eyes. The only drawback I've experienced is some dry eye but it wouldn't stop me from having it done again.