There are several reasons for night blindness, which presents with the symptoms that people can not clearly see objects on the conditions of darkness at night or dim lights. A kind of night blindness is temporary, which is caused by lack of vitamin A and can be cured. If so, you should add more foods that are rich in vitamin A into to your diet, such as carrots, tomatoes, eggs, beef liver, cod-liver oil, milk, cheese, butter, and so on. Or you can also use vitamin A to drop into your eyes. Pay attention that the use of vitamin A should be under the prescription of a doctor in case of a vitamin A poisoning. Another kind of night blindness is called acquired night blindness which is caused by malnutrition or pathological changes of the retina rhabdocyte cells. And there is still a kind of night blindness that is congenital, an inborn and hereditary eye disease, such as pigmentary degeneration of retina, or inability to compound the visual purple due to malnutrition of the retina rhabdocyte cells. If so, you should go to the doctor's for an eye examination and ask for treatment or even an eye surgery.
