Blindness (night, or chicken, blindness) - the dramatic deterioration of view, under conditions of low illumination, at dusk and at night. In individuals who have chicken blindness, significantly reduced sensitivity to light in connection with the violation of formation and decay of the visual pigment rhodopsin in the sticks of retina (see Vision).
Blindness is one of the symptoms of eye disease (retinitis retinal degeneration, glaucoma, high myopia) or was congenital. Sometimes there is blindness, developing due to malnutrition, especially the lack of vitamin a (see Vitamin deficiency).
Treatment of night blindness: vitamin a administration or fish oil; eating foods rich in vitamin a (cod liver oil, butter, milk, cheese, egg yolk), herbal products containing provitamin a (carotene),- carrots, spinach, lettuce, tomatoes, green peas, and blackberries, bilberries, black currant, gooseberry, cherry, peach, apricot, mountain ash.