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At Healthfully, we strive to deliver objective content that is accurate and up-to-date. Our team periodically reviews articles in order to ensure content quality. The sources cited below consist of evidence from peer-reviewed journals, prominent medical organizations, academic associations, and government data.
- Oregon State University; Linus Pauling Institute; Vitamin A; Jane Higdon, Ph.D.; November 2007
- Office of Dietary Supplements; Vitamin A and Carotenoids; April 2006
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The front of your eye has a clear lubrication that coats the surface, and this substance, called the tear film, nourishes and protects your eye. If your eyes do not make the right amount of tears, or if you make tears of a poor quality, you may have dry eye. This condition causes surface irritation, redness and episodes of blurry vision. Certain conditions, such as low vitamin A levels, may increase your risk for dry eye problems.
If you are experiencing serious medical symptoms, seek emergency treatment immediately.
A number of foods contain vitamin A, and these include:
- providing 1,793 IU for a half cup,
- a baked sweet potato
- which offers 3,203 IU for a half cup
Other food sources include eggs, milk, cantaloupe, spinach and broccoli. Fortified cereals also provide a significant source of vitamin A 3. If you have a deficiency or have a risk for developing low levels, your doctor may recommend a daily supplement to ensure that you have the appropriate intake.
In addition to dry eye problems, a vitamin A deficiency may result in other conditions. A severe or long-term deficiency may result in vision changes, including blindness, particularly in children. A deficiency in this nutrient may also result in respiratory conditions and the inability to fight infections.
Mild dry eye may respond to artificial tears, a non-medicated eye drop that will lubricate your eye’s surface. Some people need to use the drops frequently throughout the day for relief. However, if artificial tears do not reduce your symptoms, your doctor may recommend a medicated eye drop designed to help increase the amount of tears your eyes produce. Another treatment option involves plugging the small tear duct to encourage your tears to stay on the surface of your eye rather than draining.
Deficiencies of vitamin A do not typically occur in the United States since many foods contain vitamin A, and your body stores some of the nutrient for a period of time. These factors help reduce the risk for deficiencies. If you have a health condition that prevents your body from absorbing the nutrient, your doctor will most likely have you begin a supplement to prevent a deficiency. If you have continued problems with dry eye, talk with your doctor.
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