Does anyone have any experience of this. Dad is quite bad now and whats making it worse is that his eyes tend to be v.glazed and he stares a lot, at nothing in particular. He doesn't focus on objects and as a result needs help with drinks and food. He doesn't look at you when you talk to him. But sometimes quite randomly he will focus, but 80% of the time he doesn't. I'm worried that he might have something wrong with his eyes - or is this just a normal symptom of dementia?