Neuromyelitis optica
Overview
Neuromyelitis optica is a disorder that causes swelling of the eye nerves (optic neuritis) and the spinal cord (myelitis).
Symptoms
It can cause blindness in 1 or both eyes, weakness or paralysis in the arms and legs, painful spasms, and bladder or bowel problems.
Treatments
Medications and physical therapy may help manage symptoms.