- Gemeralopiya's symptoms
- Gemeralopiya's reasons
- Gemeralopiya's treatment
GEMERALOPIYa (Xing.: a night blindness, a night blindness) — sharp deterioration in sight in the conditions of the lowered lighting, in twilight and at night.
Distinguish an inborn, symptomatic and essential hemeralopia. The inborn hemeralopia is shown at children's and early youthful age, often has heredo-familial character. The symptomatic hemeralopia is one of symptoms of organic diseases of eyes (a pigmental degeneration of a retina, glaucoma, the high or complicated short-sightedness). The essential hemeralopia develops owing to defective food, especially at a lack of vitamin A food, chronic diseases of a liver.
Disturbances of education and disintegration in bacillary cells of a retina of an eye of a rhodopsin of the rhodopsin playing a large role in adaptation of sight to darkness are the cornerstone of mechanisms of development of a hemeralopia.
Treatment is directed to a basic disease. At the same time irrespective of an origin of a hemeralopia consumption of the products rich with vitamin A (cod liver, butter, milk, cheese, an egg yolk), vegetable products which contain provitamin A — carrots, spinach, salad, tomatoes, green peas, and also blackberry, bilberry, blackcurrant, a gooseberry, cherry, by a peach, apricots, a mountain ash is recommended.