I'll reiterate what my fine aggie friend said---
DO NOT GET IT DONE PRIOR TO GETTING YOUR SLOT!!! It could possibly disqualify you from ever flying. The AF is a pain in the rear when it comes to medical stuff for flying. The last word I saw is that you have to go through the approved process to get the surgery, and quite frankly I wouldnt risk it if you want a pilots slot. You NEED to talk to a flight surgeon about this, not just some folks a chat forum.

Now once you get your slot you can work a process out with your units flight docs and they can get you through the process of getting the PRK/LASIK done. Until then DO NOT TOUCH YOUR EYES! They arn't that bad... I have had glasses most of my life and I fly in guard, without a waiver cause I am at the 20/70, but when I went through the flight doc told me that the eyes are some the easier things to get waivered if they are below 20/200.... And now with the surgery, dude you are gonna wait a year between getting hired and actually going anywhere, so once you are hired DO IT THEN!

Good luck with everything!