The first thing I do in the morning is put my glasses on and the last thing I do before getting into bed is take them off. I ware glasses to allow me to see as well as I can but I will never see like a person with 20/20. They do make shooting more difficult and trust me if I didnt need to wear them I wouldn't, without them I will soon get a headache and would find it very difficult to continue. I dont take them off to shoot and my scope is set up so that I can focus with them on, IMO I doubt very much if they give me an unfair advantage. Just a quick look at me scores will prove the point LOL.