I had to wait for 90 days after PRK until I could go to MEPS. Seeing that PRK is disqualifying /period/ not just for Aviation, they would not pass my physical without an opto consult saying everything looks cool. This is unrelated to the aviation specific waiver I belive, and has more to do with that fact that even if you want to be a supply clerk, PRK is a waiverable PDQ. So, yes, they have to look at your eyeballs before the will process you through MEPS. Your recruiter should be the one you submit med docs to, and he will send them down to MEPS with your other paper work.
This is just what my experience was, dont take it as blanket policy, just how it went for me.