At 67, I haven’t changed anything as far as firearms usage goes. Though my eyesight certainly isn’t what it used to be, I sure can’t complain about it. On a good sunlit day, I can still see open barrel sights pretty well. Once I’m in the dark timber, though, I’m very thankful for scopes and peeps. I do find myself shooting my .223 bolt gun more and these days...and enjoy it quite a bit.