Two laser surgeries used to correct blurry vision have a similar chance of causing dry eyes, at least temporarily, a new study finds. Doctors have long known that eye dryness can be a side effect of laser-assisted in situ keratomileusis (better known as LASIK) and of photorefractive keratectomy (PRK).But the "conventional wisdom" has been that people who already have dry eyes might be better off with PRK, because it's thought to have a lower risk than LASIK.In the new study, however,that was not the case.Patients gave similar ratings to their post-op eye dryness regardless of the procedure.And in either case, the symptoms went away within a year.To see more details visit, www.medscape.com