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Ophthalmology. Toxic and nutritional optic neuropathy is a group of medical disorders defined by visual impairment due to optic nerve damage secondary to a toxic substance and/or nutritional deficiency. The causes of these disorders are various, but they are linked by shared signs and symptoms, which this article will describe.
The brain is a major target for the actions of alcohol, and heavy alcohol consumption has long been associated with brain damage. Studies clearly indicate that alcohol is neurotoxic, with direct effects on nerve cells. Chronic alcohol abusers are at additional risk for brain injury from related causes, such as poor nutrition, liver disease, and ...
Alcohol can alleviate the drinker's feelings of stress or anxiety. Alcohol myopia limits those under the influence of alcohol to see the world through a nearsighted lens; in other words, consumption of alcohol will lead individuals to temporarily forget about previous worries or problems, for these feelings lay outside of the restricted set of immediate cues that the drinker can respond to.
Alcoholic hallucinosis. Alcoholic hallucinosis is a complication of alcohol misuse in people with alcohol use disorder. [ 1][ 2] It can occur during acute intoxication or withdrawal with the potential of having delirium tremens. Alcohol hallucinosis is a rather uncommon alcohol-induced psychotic disorder almost exclusively seen in chronic ...
The short-term effects of alcohol consumption range from a decrease in anxiety and motor skills and euphoria at lower doses to intoxication (drunkenness), to stupor, unconsciousness, anterograde amnesia (memory "blackouts"), and central nervous system depression at higher doses. Cell membranes are highly permeable to alcohol, so once it is in ...
Alcoholic polyneuropathy is a neurological disorder in which peripheral nerves throughout the body malfunction simultaneously. It is defined by axonal degeneration in neurons of both the sensory and motor systems and initially occurs at the distal ends of the longest axons in the body.
Alcohol intoxication, also known in overdose as alcohol poisoning, [ 1] commonly described as drunkenness or inebriation, [ 9] is the behavior and physical effects caused by a recent consumption of alcohol. [ 6][ 10] In addition to the toxicity of ethanol, the main psychoactive component of alcoholic beverages, other physiological symptoms may ...
There are many diseases known to cause ocular or visual changes. Diabetes , for example, is the leading cause of new cases of blindness in those aged 20–74, with ocular manifestations such as diabetic retinopathy and macular edema affecting up to 80% of those who have had the disease for 15 years or more.