BILATERAL BLINDNESS DUE TO ANTI-TUBERCULAR TREATMENT: A RARE PRESENTATION
DOI:
https://doi.org/10.22159/ajpcr.2016.v9s2.11823Abstract
ABSTRACT
Ethambutol and isoniazid (INH) are antimicrobial agents used in the treatment of tuberculosis. Optic neuropathy is a well-recognized toxic effect
of these drugs, usually manifesting as a decrease in visual acuity and deficits in color vision. This study presents the case of a 75-year-old male
diagnosed of spinal tuberculosis, who developed irreversible bilateral optic neuropathy causing complete blindness induced by ethambutol and INH.
Ophthalmologic examination revealed sluggish pupillary reactions and optic disc pallor in both eyes. Visual evoked potential and magnetic resonance
imaging brain complemented the confirmation of the diagnosis.
Keywords: Ethambutol, Isoniazid, Optic neuritis, Tuberculosis.
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