LASIK and PRK are laser procedures performed on the cornea. These procedures reduce the thickness of the cornea (usually from about 500 microns to 300-350 microns) and thus essentially “laser burn” your glasses or contacts prescription into your cornea. These procedures do not change the anatomic reason for near sightedness, which in most cases is a slightly long axial length of the eye.
Most myopic or near sighted eyes are at increased risk of retinal detachment over a patient’s lifetime, simply from the eye’s anatomy. Does LASIK or PRK increase what is already an increased risk? There is no definitive answer in the literature, but the literatures suggests probably not. We cannot say definitively, but there is probably no increased risk from the procedure itself.