Synopsis

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

Vitamin A is scientifically validated for use in the support and treatment of certain eye infections, particularly those associated with vitamin A deficiency. Vitamin A plays a crucial role in maintaining the health of the conjunctival membranes and cornea. Deficiency can lead to xerophthalmia, a condition that includes dryness of the conjunctiva and cornea and can predispose to infection and ulceration. Clinical studies and public health interventions have shown that vitamin A supplementation reduces the risk and severity of infectious eye diseases in populations where deficiency is prevalent, especially among children in developing countries. The World Health Organization (WHO) recommends high-dose vitamin A supplementation in children with measles who are at risk of ocular complications, as it reduces the risk of blindness and mortality. Topical forms of vitamin A (such as retinol palmitate ointment) are also used in some settings for the treatment of dry eye and certain corneal injuries, though this is not specifically for infection. However, in individuals with normal vitamin A status, there is limited evidence that additional supplementation directly treats or prevents eye infections. The primary scientific support is for reversing deficiency states that predispose to infection, rather than as a direct antimicrobial agent.

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