Sorry to hear about your grandmother :

:
My grandmother (who I never met in person and she past away 5 years ago) she had big sores on her leg, she actually took some photos of the sores and send them to me.. She never got to the point where she was confused or senile. It´s sad when people become like that.
My father is getting a little senile. He is not the same person he used to be. Which I feel frustrated about, but in a way it seems that this makes it easier for him getting older, because his mind is sort of light and he doesn´t worry so much about small or big things, and he can just "have fun" or be entertained watching tv or whatever he likes.