Actually I think contact lenses would work better than glasses for "grandpa!"Our pinstripe BP has horrible eyesight, one of the first things we observed when we got her. One eye cap is always a bit wrinkled. At first we thought it was a retained eyecap, but it's not. She probably just hurt it at some point.
Hey, do elderly snakes change color or get gray? We had a very old Beta fish that literally turned mostly gray before it finally died of old age.