The optic nerve is very sensitive to the effects of certain toxic substances. For lesions of the optic nerve may influence:
methyl and ethyl alcohol
substances contained in tobacco smoke
Lead
certain drugs:
quinine
plazmotsid
antihelminthic drugs
sulfonamides.
The defeat of the optic nerve with ethyl alcohol and nicotine, tobacco and alcohol is called degeneration. This gives rise to degenerative changes in nerve tissue of the optic nerve. The disease develops very slowly. The function of gradually breaks down. The boundaries of narrow fields of view, there are areas of hair loss. The first sign may be reduced twilight vision.
Toxic damage of the optic nerve arises in the use of methyl alcohol. Initially, nausea, and vomiting. The patient may lose consciousness. At the use of high doses of methyl alcohol is very often fatal. If the patient is still alive, after a few hours after consuming methyl alcohol impairment arise. At the same time develops inflammation in the optic nerve, which leads to the death of nerve fibers and atrophy of the optic nerve.
Treatment of toxic lesions of the optic nerve begins with the cessation of further exposure to toxic substances. Toxic substance as possible should be removed from the body, appointed by the disintoxication therapy.
To reduce the swelling of the nerve assigned diuretics, anti-inflammatory drugs. To maintain the functions assigned to the optic nerve sosudoreguliruyuschie, improving nutrition of nervous tissue preparations, antioxidants, and vitamins. Various stimulating effect on the optic nerve.
