Will he take pre-killed or frozen/thawed prey? If you're dealing with an impaired snake it might be a good idea to reduce the risk of injury in case he has a hard time seeing or striking properly. Definitely get them to stop putting two mice in there at once; give him one at a time (I got the impression both mice were fed at the same time).

Other than that I don't really have anything useful to say regarding the eye, other than I think a reptile vet would be a good idea.