There is one really good book you can get called "I'm not sick and I don't need help." It's written by a psychiatrist who's brother suffered from schizophrenia, and is the culmination of his clinical and personal experience over decades. I suffer from schizoaffective disorder, and I have reasonable insight most of the time, but I can honestly say that this is the book I'd want my Dad to read if I was acutely ill. (The other is "surviving schizophrenia" by Dr Torres).

The thing I wish people could understand is how unhappy and frustrated I get with myself. I used to be very able, and had high prospects. It disappoints me no end that I'm forty and practically unemployable, that I can't drive, that I spent years studying at university, perfecting my skills, and it's been a waste of time. Your brother in law is probably acutely aware of his change in the social pecking order, and it does hurt. Remember to treat him as the same person he was before. He's still in there.

Thank God he didn't lose his eye by the way. In the past I've tried to cut things out of me, but fortunately nothing as vital (or painful) as an eye.