When shooting a rifle with a scope, I generally remove my glasses. I can see the reticle just fine and the scope changes the focal plane of distant objects, so it works out just fine.
One day, when sighting in the irons on my AR (with my glasses off), I just couldn't see those little .22 caliber holes 100 yards away. One of the ROs used the spotting scope to help me out. Surprised at my accuracy, he said, "If you can't see that well, how do you shoot like that?" I explained that I could see the front sight just fine... all I had to do was put it in the middle of that blur 100 yards away.
