Evidence supporting the use of: Vitamin A
For the health condition: Eyes (spots before)

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Synopsis

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

Vitamin A is scientifically validated for its essential role in maintaining eye health, particularly in the context of preventing night blindness and certain retinal disorders. Vitamin A is a crucial component of rhodopsin, a protein in the retina that allows the eye to see in low-light conditions. Deficiency in vitamin A can lead to symptoms such as night blindness and, in severe cases, to the appearance of Bitot’s spots (foamy, whitish patches on the conjunctiva) and even xerophthalmia (dryness of the conjunctiva and cornea), which can progress to blindness if untreated. While "spots before the eyes" is a vague term and can refer to floaters (which are not caused by vitamin A deficiency), vitamin A is directly linked to the resolution and prevention of Bitot’s spots and other deficiency-related ocular surface disorders. Numerous clinical studies and decades of public health interventions have shown that vitamin A supplementation dramatically reduces blindness in populations at risk for deficiency. However, for floaters or other causes of visual spots not related to deficiency, vitamin A is not indicated. Therefore, its use is justified and strongly supported for deficiency-related ocular surface conditions, but not for all types of “spots before the eyes.”

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Other ingredients used for Eyes (spots before)

bilberry
lutein
vitamin A
zeaxanthin
zinc