Since vitamin A is stored in the fat cells, it is possible to take too much vitamin A in supplement form, although it is unusual to take in excess vitamin A from dietary sources. This is a rare condition that affects about 1 in every 9000 people. The by-products of vitamin A could potentially speed up vision loss and retinal degeneration in people with recessive Stargardt’s disease, cone-rod dystrophy, and other retinal conditions caused by certain genetic variations.
Discuss the risks and benefits of any vitamin-A supplementation with a doctor. However, vitamin A can sometimes have an adverse effect on health. Researchers found them to provide similar levels of symptom relief. People can have a vitamin-A deficiency if an underlying condition prevents the bowel from absorbing nutrients, such as diseases of the digestive system, including Crohn’s disease and chronic pancreatitis.Ī 2009 study compared vitamin-A eye drops to prescription eye drops for dry eye. In some areas of the world, up to 50 percent of preschool children do not get enough vitamin A. Vitamin-A deficiency has links to dry eye.įood deprivation is the primary cause of a vitamin-A deficiency, which occurs mainly in poor communities. Share on Pinterest Researchers have tried adding vitamin A to eye drops for dry eyes, but there is not enough evidence to prove that this is useful, and it may not be safe.
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