C.B.
It might be better for her to just remember grandma the way she looked before. If she doesn't feel like she can/wants to see her, just have her make grandma a lovely card and write in the card all the things she would like to say to her. She could also call her grandma and visit with her like that.
Don't force her. This is very frightening. You need to respect her feelings and her wishes. I'm sure grandma would understand. I know I would if it were me and my grandchildren. Not that I wouldn't be sad, but I would understand.