I think the vet may have used the word senility in explaining her behavior. Her people will do anything for her. In fact, when they were trying to decide how much to pay me for staying here with her for 3 days, the husband said that to him $1000 wasn't too much. Of course it was too much to me!
Here are a couple of pictures I just took of her. You can sort of see the film on her eyes. It's so sad to me to watch her get older, I can't imagine how her parents feel.