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Tobacco-alcohol amblyopia: a diagnostic dilemma.
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Abstract
Tobacco alcohol amblyopia is an outdated term for a rare condition characterized by visual impairment due to tobacco and alcohol abuse usually associated with nutritional deficiencies. The more accurate term used now is Nutritional Optic Neuropathy. The visual impairment generally presents as a centrocecal scotoma. Its pathophysiology is poorly understood but it is generally attributed to toxic effects of cyanide and B12 deficiency.