I've been working on it for a year and still not doing terribly well. I'm in my mid 50's and if I really want to see sharp like at a longer range target there is no comparison. One eye closed works better. I think the Red dot sight helps a lot. I know some accomplished rifle shooters that insist on keeping both eyes open but wear a shield in front of the weak eye. It is supposed to relax the face muscles and help in some way. I still keep trying, Good luck.