Answer
Yes. Ethambutol can rarely damage the optic nerve. Stop taking it and obtain urgent assessment for blurred vision, eye pain, altered colour vision or loss of vision.
Sources for this answer
- Rimstar Film-coated Tablet / Voractiv Film-coated Tablet — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.