What Causes Neuromyelitis Optica?
Scientists aren't sure why some people get the condition, but they know what makes it more likely to develop.
How It Progressed for Me
Learn what it’s like to live with NMO and how it can change over time.
How Is NMO Different From Multiple Sclerosis?
These two central nervous system disorders have some of the same symptoms but are treated differently.
Symptoms and Diagnosis
The first signs are often sudden eye pain and vision problems. Learn what else to watch for.