Check with vet, if blindness is her only problem- and you or people you are working with are experienced horse people, go for it- if you are up to the challenge. Golden, ya beat me to it (the videos). Especially with a baby, they don't know any different, so it's not as scary to them.
My sister in law had a foal born mostly blind (completely on one side, other side may as well be). Close to 10 years old now, and is doing fine. She is rideable, sane, healthy and does just fine.