Can my sister recover vision and strength with NMOSD?

Question

Hello doctor,

My 35-year-old sister was recently diagnosed with NMOSD (neuromyelitis optica spectrum disorder) after two attacks of optic neuritis and leg weakness. She is on high-dose steroids now, but her vision is still blurred. The neurologist spoke about long-term immunotherapy, but we are confused about which options are safest and most effective at preventing relapses.

Can vision or mobility improve once treatment starts?

Please help.

Thank you.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern. Neuromyelitis Optica Spectrum Disorder (NMOSD) can be overwhelming for both the patient and family, especially early after diagnosis.

At present, the blurred vision and leg weakness your sister is experiencing are due to previous attacks of inflammation (optic neuritis, inflammation of the optic nerve, causing blurred vision and myelitis which is inflammation of the spinal cord, often damaging myelin (the nerve sheath), which disrupts nerve signals, causing pain, weakness, paralysis, and bowel/bladder issues). High-dose steroids are given in the acute phase to control active inflammation. In some cases, additional therapies like plasma exchange (PLEX) or IV (intravenous) immunoglobulin (IVIG) may be considered if recovery is incomplete.

For the long term, the main goal is to prevent relapses, as repeated attacks can cause cumulative and often irreversible disability. Several effective immunotherapies are available, such as Rituximab, Mycophenolate mofetil, Azathioprine, and newer biologics like Eculizumab or Inebilizumab. The choice depends on factors like availability, cost, safety profile, and your sister’s overall health. These are not cures, but they significantly reduce the frequency and severity of relapses.

Vision and mobility may partially improve over weeks to months as inflammation settles, but the degree of improvement depends on how much nerve damage has already occurred. Early initiation of relapse-prevention therapy gives the best chance to maintain her current function and avoid further disability.

It is important to have a detailed discussion with her neurologist about the pros and cons of each long-term therapy, monitoring requirements, and insurance/financial considerations. Supportive measures like physiotherapy, low-vision aids, and counseling can also make a meaningful difference in daily life.

I hope this answers your query.

Please let me know if I can assist you further.

Thank you.