I think a lot of her health problems - the falling down, the prism eyeglasses - stem from her drinking/sleeping pills stuff. Maybe Huma is keeping her in a drugged state!
I don't see how you get prism eyeglasses from "drinking/sleeping pills stuff". People wear prisms because their eyes don't align properly. Their brain thinks they are looking in the same place, but one or both eyes are looking elsewhere. It is called diplopia. The prisms force the eye(s) into position. If not corrected, it causes double vision. I have it and have had 6 eye surgeries to correct it and I still have to wear prisms. Mine was caused by something called Graves Disease. Other things can cause it. My step-daughter developed some alignment problems recently and has had to start using prisms as well.