Does the FFL make glasses for people who wear them, or recruits use their own? I believe in the US military, they're required to wear special ones with these thick frames (fondly referred to as BCG's, "Birth Control Glasses", because no one is going to want you with how ugly they are

). Just curious if I need to up my prescription by a slight amt, would it be better to get the new glasses here, or not necessary because I'd only wear BCGs during training anyway.