I keep trying the glasses hoping I just need to get used to them but no go. Don't wanna make that 100 mile trip back. What I'm saying is check the simple things as I know you have. Glasses, Lights where ya working, changes of habit in work spots, too many birthdays.... I think I had that dogs Brother!! Old Sam was a GREAT rabbit dog and Lived to be 23 yrs old!! Wanted to hunt right up til the end. But he never would hunt with just anybody. When I got out my gun he went Nuts all ready to go. Anybody else he would just look at them like "You want what??" One man dog!! I miss Ol Sam!!