Drug-induced optic neuropathy in a case of extensively drug-resistant pulmonary tuberculosis.

We report a 26-year-old male patient diagnosed with extensively drug-resistant pulmonary tuberculosis presenting with reversible bilateral toxic optic neuropathy induced by the use of linezolid along with high-dose isoniazid. The case emphasizes the importance of recognizing toxic optic neuritis in patients on antitubercular therapy. Prompt recognition and treatment of such adverse drug reactions will reduce the associated morbidity.