Its pretty individual according yo your eye failure. I need glasses to read anything at any real distance without glasses but i can shoot scoped just fine without em and have to wear them to shoot with irons at even moderate ranges of 25 yards.
People who cant focus up close have more trouble shooting without glasses than those who cant see far off.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent