<unk> , or nutritional optic neuropathy, is a condition where a<unk>  reaction in the optic nerve results in visual loss. Various poisonous substances may cause the condition as well as nutritional factors. Tobacco<unk>  is a form of<unk>  caused by tobacco containing cyanide. Tobacco<unk>  is marked by a gradual impairment of vision characterised by visual field defects and hindered central vision. Methyl alcohol<unk>  occurs through acute poisoning by methyl alcohol and may lead to complete blindness. Since the term<unk>  is a misnomer according to modern definition of<unk> , it is now more accurately termed as<unk>  retinopathies or neuropathies.
Toxic amblyopia
Congenital cataract
Motion-induced blindness
Phacolytic glaucoma
Cat eye syndrome
Ametropic amblyopia
Childhood cataract
Ghost cell glaucoma