Why are candidates who have had PRK surgery eligible for more than those who have had LASIK?
“In the USA candidates who have had PRK can get a blanket waiver for the Special Forces Qualification, Combat Diving Qualification and Military Free Fall courses. PRK and LASIK are both waived for Airborne, Air Assault and Ranger schools. However, those who have had LASIK must enroll in an observational study, if a slot is available, to undergo training in Special Forces qualification. LASIK is disqualifying/non-waiverable for several United States Army Special Operations Command (USASOC) schools (HALO, SCUBA, SERE). Army Regulation 40-501″
Source: http://en.wikipedia.org/wiki/Photorefractive_keratectomy

