Neuro-Ophthalmology & Neuro-Otology
Toxic and nutritional deficiency optic neuropathies
Toxic or nutritional optic neuropathy is classically characterized by gradual painless progressive vision loss, bilateral central or cecocentral scotomas, marked dyschromatopsia, loss of high spatial frequency contrast sensitivity, temporal pallor, and loss of papillomacular bundle. A thorough history of medication use, toxic exposure, substance abuse, dietary deficiency, past surgeries, family history, and peripheral neurologic symptoms should be documented. Early recognition, removal of toxic agents, and supplementation of nutritional deficiencies may lead to protracted visual recovery.
Dec. 02, 2021