Toxic amblyopia
From Infogalactic: the planetary knowledge core
Toxic amblyopia is a condition where a toxic reaction in the optic nerve results in visual loss. Various poisonous substances may cause the condition as well as nutritional factors.[1]
Tobacco amblyopia is a form of toxic amblyopia caused by tobacco containing cyanide. Tobacco amblyopia is marked by a gradual impairment of vision characterised by visual field defects and hindered central vision.
Methyl alcohol amblyopia occurs through acute poisoning by methyl alcohol and may lead to complete blindness.
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