(a, b) Disc pallor in a 44-year-old female with ethambutol toxicity. She was treated with ethambutol for 2 months for tuberculoma brain. (c, d) Goldman visual fields of the same patient showing bilateral centrocecal scotomas | Sharma, P., & Sharma, R. (2011). Toxic optic neuropathy. Indian journal of ophthalmology, 59(2), 137–141. https://doi.org/10.4103/0301-4738.77035

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