Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Vitamin A has a well-established role in maintaining eye health, and its use in supporting or treating certain eye infections is scientifically validated, particularly in the context of deficiency-related ocular issues. Vitamin A is essential for the maintenance of the conjunctival membranes and corneal surfaces. Deficiency can lead to xerophthalmia, a condition that increases susceptibility to infections such as conjunctivitis and keratitis. Supplementation with vitamin A has been shown to reduce the risk and severity of these complications, especially in populations at risk for deficiency (e.g., children in developing countries). The World Health Organization recommends high-dose vitamin A supplementation for children with measles, as it reduces the risk of severe ocular complications and mortality. However, vitamin A does not directly treat infectious agents; rather, it supports the immune response and promotes mucosal integrity, thereby reducing the risk and severity of infections. In summary, while vitamin A is not an antimicrobial agent, robust scientific evidence supports its use in preventing and managing eye complications due to deficiency, which often manifest as or are complicated by infections.

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