Information about neuromyelitis optica


NMOSD is a progressive autoimmune disease where the immune system mistakenly attacks nerve cells, affecting the nervous system. Learn more about the disease here.


Scientists do not know the exact underlying cause of NMOSD. Self-reactive antibodies that target AQP4 are known to play a major role. Learn more about what causes the disease here.


When the disease affects the optic nerve (optic neuritis), it can result in pain inside the eye and possibly blurry vision or vision loss. Learn more about the symptoms of the disease here.