Evidence supporting the use of: Vitamin A (unspecified)
For the health condition: Eye Infections

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Synopsis

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

Vitamin A has a well-established role in supporting eye health and treating certain eye conditions, particularly those related to deficiency. Scientific studies have shown that vitamin A is essential for the maintenance of healthy conjunctival membranes and corneal epithelium. Deficiency in vitamin A is a leading cause of preventable blindness worldwide, most notably through the development of xerophthalmia, which may progress to corneal ulcers and secondary infections. Supplementation with vitamin A is recommended by the World Health Organization (WHO) for children with measles and those at risk of deficiency, as it can reduce the risk of severe ocular complications, including keratomalacia and subsequent infection. However, while vitamin A supplementation is effective in treating and preventing eye problems due to deficiency, its use as a direct treatment for infectious eye diseases in individuals with adequate vitamin A status is less clear. There is limited evidence to support vitamin A as a primary treatment for infectious conjunctivitis or other eye infections unrelated to deficiency. Nonetheless, in populations where vitamin A deficiency is prevalent, supplementation can play a significant role in reducing the severity and complications of ocular infections. Thus, the use of vitamin A for supporting or treating eye infections is scientifically validated in the context of deficiency, with strong evidence for its preventive and adjunctive therapeutic roles.

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