+1 on the Kahles 3-10x50 CL with SF. Also +1 on your eyes being a major factor in the problem and that aging eyes need the best optic obtainable. I've gone through the same evolution with scopes and hunting rifles in the past few years. Believe me when I say the day you look through a quality optic that matches your eyes will be the light at the end of the tunnel!!
Best of luck
