should Bi-polar disorder be considered a mental illness?

It could be truth, only she knows how she really feels and for a reason her doctor says she can't work. It is funny because I try to get ssi because I have vision problems, I was declared legally blind in one eye and low vision on another but ssi say I could still see big objects. LOL I am ok now and I am managing better my vision, I only see my monitor with my low vision eye and am looking for work, so all is well for me. I have a rare eye condition, I needed a low vision doctor but since my vision is not that common, there nothing that can be done other than to live one day at a time.