Vitamin A Deficiency Diagnosis and Treatment
Vitamin A deficiency is diagnosed by an eye exam and by reviewing medical history. A blood test can measure the amount of vitamin A in the blood. But because vitamin A deficiency is most common in areas with limited medical access, the diagnosis is often made informally. For example, a parent may mention their child’s night blindness—a common sign.
How is vitamin A deficiency treated?
Vitamin A deficiency can be treated with vitamin A supplements. The amount of supplements depends upon the age of the child. Vitamin A supplements can reverse night blindness. It can also help the eyes become lubricated again. But vision loss caused by scarring from corneal ulcers cannot be reversed.
There are organizations working to stop vitamin A deficiency in developing nations. They promote prevention through a balanced diet and taking vitamin supplements.