Synopsis

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

Vitamin A (retinol acetate) is scientifically validated for its use in supporting and treating certain eye problems, particularly those related to deficiency. Vitamin A is essential for the formation of rhodopsin, a photopigment in the retina, which is critical for low-light (scotopic) vision. Deficiency of vitamin A is a well-established cause of night blindness and, in severe cases, can lead to xerophthalmia and even irreversible blindness.

Numerous clinical studies and public health interventions have demonstrated that vitamin A supplementation can prevent and treat these eye conditions, especially in populations at risk of deficiency (e.g., children in low-income countries). The World Health Organization and other health authorities recommend vitamin A supplementation to reduce the incidence of blindness associated with deficiency.

While vitamin A is necessary for eye health, supplementation is only indicated when deficiency is present or highly likely, as excess intake can be toxic. There is less evidence for the benefit of vitamin A supplementation in preventing or treating other eye diseases such as age-related macular degeneration or cataracts in populations with adequate vitamin A status.

In summary, the use of vitamin A to treat or prevent deficiency-associated eye problems is strongly supported by scientific evidence and is a cornerstone of public health initiatives in at-risk populations.

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