Whether or not a third time would work, my laser surgeon already told me it would be the last time he'd try to fix it (which is a different tune than he was singing originally). Since my surgery, I've bumped into a number of other PRK patients who've had similar troubles.

Also, the procedure left me with "haloing", which means that when its dark outside and you see lights, they all have a white halo around them, which is super annoying.

Another word of warning to potential PRK patients: the recovery period for me was measured in weeks (over a month, for me), and during that time my vision was hampered enough to make it difficult or impossible to work on computer screen. All in all, I wish I never had PRK.