Synopsis

Source of validity: Scientific
Rating (out of 5): 5

Vitamin A is scientifically validated as essential for eye health, particularly in the prevention and treatment of certain eye problems. The most well-established link is between vitamin A deficiency and night blindness, xerophthalmia, and, in severe cases, complete blindness. Vitamin A is a crucial component of rhodopsin, a protein in the retina that absorbs light, which is necessary for both low-light (scotopic) and color vision. Numerous clinical and epidemiological studies show that vitamin A supplementation can reverse night blindness and prevent corneal ulceration and blindness in populations at risk of deficiency, especially in developing countries. The World Health Organization (WHO) includes vitamin A supplementation as a key public health intervention to reduce childhood blindness. Randomized controlled trials have demonstrated that vitamin A supplementation reduces the incidence of xerophthalmia and improves ocular health in vitamin A-deficient individuals. However, supplementation is not indicated for eye problems in individuals with adequate vitamin A status, as excessive intake can be toxic. In summary, the use of vitamin A to treat or prevent eye problems is supported by robust scientific evidence, specifically for deficiency-related conditions.

More about Vitamin A (unspecified)
More about Eye Problems

Other ingredients used for Eye Problems

Other health conditions supported by Vitamin A (unspecified)

Products containing Vitamin A (unspecified)