HomeAnswersNeurologytuberculosisWill replacing Ethambutol with vitamin B12 injection help in diminishing vision problem?

Vision is diminishing after taking 6 months TB treatment. Why?

Share

The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Medically reviewed by

Dr. Vinodhini J.

Published At April 29, 2020
Reviewed AtFebruary 1, 2024

Patient's Query

Hello doctor,

Patient is a 61 year-old female. Six months ago she was diagnosed with bone TB and undergoing medication (Ethambutol, Rifampicin, and Isoniazid). After six months of usage, her eye vision is suddenly diminishing. Then her doctor told to discontinue Ethambutol immediately and started using some B12 1500 mg injections on alternate days. After one week they started steroids just to rule out if there might be any optic nerve inflammation. We have done MRI and the findings are below.

1. Tiny FLAIR hyperintense foci in the frontal and parietal and white matter small vessel ischemic changes.

2. Widened perioptic CSF space.

3. T2 hyperintense signal is seen in the chiasm and optic tract.

Kindly suggest what to do?

Answered by Dr. Aida Abaz Quka

Hello,

Welcome to icliniq.com.

I passed carefully through your question and reviewed your uploaded MRI (magnetic resonance imaging) report. (attachment removed to protect patient identity).

I would explain that these MRI findings (T2 hyperintensity in the optic nerve and the optic chiasm) are indicative of optic nerve inflammation (neuritis), which could be related to Ethambutol adverse effects. The troubles with vision are a clinical sign of optic neuritis too.

So, considering that there is a correlation between radiological and clinical findings, I would conclude about optic neuritis and would recommend to stop Ethambutol as soon as possible in order to avoid possible blindness.

I hope this helps.

Patient's Query

Thank you doctor,

We have already stopped Ethambutol. Even after stopping Ethambutol (after three weeks), her vision deteriorated further. We are currently using Prednisolone steroids and the TB medication excluding Ethambutol. Is there anything we can do to restore her vision? We are also using B12 injections.

Answered by Dr. Aida Abaz Quka

Hello,

Welcome back to icliniq.com.

I agree with your doctor on the decision of starting vitamin B12 and steroid therapy. There is nothing more to do, besides wait and see if her situation improves.

Steroids (Prednisolone) can help reduce the inflammation (neuritis), but it may take up to a month to see good results. So, try to be patient and see how her situation is going to improve because unfortunately there is no other therapy that can help in this situation.

I hope this helps.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Aida Abaz Quka
Dr. Aida Abaz Quka

Neurology

Community Banner Mobile
By subscribing, I agree to iCliniq's Terms & Privacy Policy.

Ask your health query to a doctor online

Neurology

*guaranteed answer within 4 hours

Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.

This website uses cookies to ensure you get the best experience on our website. iCliniq privacy policy