When it gets dark, you can t see anything

It may be night blindness, lack of vitamin A. Vitamin A is a component of photoreceptors in visual cells, and when vitamin A is deficient, sensitivity to low light is reduced, dark adaptation disorder occurs, and night blindness occurs in severe cases.

1.Mild vitamin A deficiency.

Vitamin A deficiency can occur due to malabsorption (such as intestinal disease, gastric resection), metabolic abnormalities (fever) or excessive loss (nephritis), remove hair-related hormones, and give vitamin A-rich foods such as pork liver, chicken liver, sheep liver, milk, egg yolk, carrots, fish eggs, milk, pea seedlings, enoki cabbage, alfalfa, red sweet potato, pepper, river crab, yellow eel, spinach, leek, camellia, lettuce leaves, enoki or fruits such as apricots, mangoes, persimmons, etc. Give high doses of vitamin A, if oral malabsorption, can be changed to intramuscular injection, when using should be noted that long-term use of vitamin A in large amounts can produce hypervitaminosis A. If there are other vitamin deficiencies, supplement accordingly.

2.Patients with severe vitamin A deficiency.

Intramuscular injection can be given to patients who are not absorbed orally, and the dose should be gradually reduced after the symptoms improve to prevent long-term large-scale application of hypervitaminosis A. Ocular lesions should be treated locally**, salicylate ointment or urea cream can be applied to the lesions, and other vitamins and nutrients associated with deficiencies should be corrected and supplemented. (Encyclopedia).

This is advice only. If it is severe, seek medical attention promptly.

The eye is blind at night.

Night blindness can be treated as "acquired night blindness". Patients should be comprehensively fortified with nutrition and a reasonable dietary arrangement. Especially for teenagers in the development stage, it is best to eat a variety of foods rich in vitamin A and high-quality protein, such as cod liver oil, animal liver, poultry eggs, milk, green fresh vegetables and a variety of fruits.

For those who are more seriously ill, they should go to the hospital for diagnosis and treatment, and vitamin A can be added or injected, and a certain amount of other vitamins (such as VB, C, D, and E, etc.) can be supplemented to make the overall balance of vitamins in the body. It should be emphasized that vitamin A supplementation should not fall into the misunderstanding, the more vitamin A is not the better for the eyes. It is best to take the dosage under the guidance of a doctor, otherwise it is easy to cause poisoning.

Problem analysis: Hello, your symptoms may be due to overwork, lack of rest, may be caused by physical exhaustion, temporary lack of blood supply to the brain caused by lack of oxygen in front of the eyes of the eyes, in this case, you can fall on the spot, rest, improve the situation of insufficient blood supply to the brain, rest for a while will slowly relieve.

Suggestions: Suggestions; Do what you can, don't be overworked, combine work and rest, and avoid emergency falls and physical injuries.