Symptoms:
You do not see as clearly in the dark as do others. When you go out into the dark, your eyes seem to adapt slowly to it.


Cause:
This does not mean you are going blind. The primary problem is a lack of vitamin A, which the body uses to make visual purple and to help you see in the dark.

The lack of vitamin A in the system can be caused by an inferior diet. But it may also be traced to one of the following: The body has a fat malabsorption syndrome, and does not absorb oil-soluble vitamins properly. A zinc deficiency will cause the liver to poorly convert carotene to vitamin A. Cystic fibrosis, celiac disease, and various food allergies can produce intestinal changes which would affect fat-soluble vitamin absorption.

Treatment:
• Get enough vitamin A (50,000 units daily) and 15-50 mg of zinc.

• Some people wear a stronger prescription of glasses when they must drive at night. Keep the headlights and windshield clean. Do not wear sunglasses at dusk. Drive slower at night. Better yet, only drive during the day.