Can Autoimmune Disease Lead To Pain In Ears,eyes And Cheek?

My daughter has had pain in one of her eyes that sometimes goes to her ear and cheek, she is light sensitive too. This has been going on for 3 1/1 years. They think it is uvielitis. The pain is so bad that she has to come home from work. She s been on many sterioid drops and they don t help. We are dealing with opthamologists and specialists in our state but are going to get her physician to refer her to a special hospital that deals with this. Plus we are thinking this may be caused by an autoimmune disease and she has had tests and those tests didn t show anything but, were they the correct tests? Do you have any suggestions on where to go, what to do, or a possibility of a diagnosis from this info?