Monday, November 22, 2004


Dimness of vision that may be gradual or sudden in onset and may affect both eyes or one. It may be transient or permanent and can develop into blindness. The disorder may be caused by hysteria or by poisoning with ethyl or methyl (wood) alcohol, lead, arsenic, thallium, quinine, ergot, male fern, carbon disulfide, stramonium, or Cannabis sativa (Indian hemp, the plant from which


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