I had PRK done in 1997 by an MD I worked for. The only problems are halos in dim light because of my large pupils.
I did have some dry eye issues for the first few years after, but surprisingly those are gone. I even live in a much drier climate.
There were a few episodes of mild corneal erosion (upon awakening) both in the first few years post. In both cases, I put in a SCL bandage for 24 hrs and it healed by the next day.
If it is possible, if you were going to have it done, ask for a larger optical zone size to minimize halos.
Overall, I'm pleased. I'm stable refractively. I was plano for one year after Sx. Then I regressed into myopia a bit with a trace of cyl. Then I got a trace far sighted (might be age HA!). Presently I'm +0.12-100X90 OU corrected to 20/15+3. OU 20/10 barely. Original script was -1.25-1.75X090 and -1.75-2.25X090. Original VA was 20/200 monocular.
Actually, I can read 20/25 monocular, barely 20/20 OU, uncorrected but I'm so ... picky ... that I like to have my glasses on for the more precise 20/15+ VA.
At the time of surgery, I was given a choice of LASIK or PRK and I chose the latter because at the time it was the treatment of choice for low myopic refractive errors. Also, I felt I might have panic attack during the microkeratome "blackout." I just didn't think I could handle that on my eye, not even with someone I trusted completely.
But hey, over time both procedures are proving to work quite well.
Just my two cents.