Answer:

1.In rare cases in the United States or in other parts of the world wherenutritional diets may vary, vitamin Adeficiency can also lead to night blindness. Vitamin A, also called retinol, plays a role in transforming nerve impulses into images in the retina. The retina is a light-sensitive area in the back of your eye.

2.The nature of these symptoms will depend on the underlying cause but may include:

headaches.eye pain.nausea.vomiting.blurry, or cloudy vision.sensitivity to light.difficulty seeing into the distance.

3.Doctors often recommend supplementing with vitamin A per day to correct a deficiency. Night blindness may be an early sign of vitamin A deficiency. Such adeficiency may result from diets low in animal foods (the main source of vitamin A), such as eggs, dairy products, organ meats, and some fish.

Explanation:

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