akdorsey:
Before you have a surgeon perform PRK, consider your options. You might not need to have your prescription permenantly etched onto your eyeball. There is a relatively new soft contact lens waiver available, and from what I understand, you don't have to already be a rated aviator. There was quite a bit of hubub over this in some threads, but it looks like it's finally been put to rest .. both NCRC and MCRD (hope I got those acronyms right) now accept SCL waivers .. although apparently no OCS applicant has tested this yet.
One thing people don't mention is that the published success rate of PRK/LASIK is based solely on visual acuity (20/10, 20/20, 20/30, etc). It's not uncommon for people who have these procedures to incur degraded night vision due to light scattering around the edges of the treated area of the eye. This phenomenon is less noticable in the daytime when the pupil is constricted. I did a hell of a lot of research into this, and decided that personally, it was not worth the risk. There are several new European studies which show serious persistent night vision complications are prevalent in LASIK patients (and my hunch is it wouldn't have been any better with PRK, had that been the procedure of choice). Something like 70% of Germans who have had LASIK done had night vision so poor that they shouldn't be driving. I personally know two people who can barely drive at night, years post-op. On the other hand, I know another guy who had absolutely no complications whatsoever.
I'm not trying to scare you, or stir the pot. All I'm saying is, this operation is very, very far from being a sure thing. Keep in mind that someone who lost their night vision to PRK probably isn't going to be posting here .. they know their chances are shot. PRK is a gamble, and should only be undertaken after evaluating risks and alternatives. Good luck!