Question: what autoimmune diseases affect the eyes?
Answer: Behcet disease. This rare autoimmune disorder is a leading cause of blindness in some developing countries. ... 
Lupus. ... 
Multiple sclerosis (MS). ... 
Psoriasis. ... 
Reiter's syndrome. ... 
Rheumatoid arthritis (RA). ... 
Sjogren's Syndrome. ... 
Thyroid diseases.