
A really interesting article which helps to explain some things with our previous dog. When he went to the vets for a check up at 12 years old we were totally amazed when the vet told us he had gone blind. We had absolutely no idea at all - he still ran around the house as normal, could catch a ball that was bounced in front of him and came running up to you when called. He never bumped into anything and was never apprehensive about going anywhere new. He lived like this for another year before passing on.