In the last 25 years I have had Radial Kerotodemy, PRK and Lasik. Having been born a hair from being technically blind and wearing glasses as a child that were almost 1/4" thick I can now say at 59 years old I have 20/20 vision with no astigmatisms.
If at all possible go for Lasik first. The down time is much shorter due to the corneal flap which is repositioned after the second laser does the contouring of the eye and covers the work performed.
With PRK a corneal flap is not made and the upper layer of corneal cells are physically "brushed off" the eye. The regrowth of the cells can take up to 6 weeks for some folks.
Lasik is the preferred method for most folks and is usually only NOT performed if a persons cornea is too thin and may fragment into pieces during the formation of the corneal flap. Folks with thin corneas usually go with PRK.
Both procedures take only a few minutes per eye.
I am thrilled with my results. Read up on everything you can on Lasik and PRK before you make a decision.