Artwork of patients with NMOSD walking, playing, and picnicking in a park: Navigating NMOSD

Whether you’re just beginning your journey with neuromyelitis optica spectrum disorder (NMOSD) or you’ve been on it for a while, there’s a lot to understand. The more you know, the better you can manage your condition.


NMOSD is a rare autoimmune disease

NMOSD is a chronic condition that affects the central nervous system, but it may be managed with appropriate treatment.


people in the US

are estimated to be living with NMOSD


years of age

median age of onset of NMOSD

Artwork of cells and astrocytes

Uncover a cause of damage and disability in NMOSD

Understanding anti-AQP4 antibody-positive NMOSD attacks is a first step toward managing your condition

Learn how to help manage your NMOSD

Engage with experts and keep up with the NMOSD community