How does vitamin A contribute to maintaining healthy eyesight?
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Vitamin A is essential for maintaining healthy eyesight. It serves as the photosensitive chromophore in the visual pigments of the retina, allowing for vision in low-light conditions and color vision . Vitamin A also acts as an antioxidant, protecting the eyes from free radical damage and helping to prevent eye diseases such as cataracts and macular degeneration . Additionally, vitamin A plays a role in the immune system, protecting cells from harmful bacteria and counteracting damage from pollution, tobacco smoke, and radiation . It is involved in the formation of cells lining the eyes and other tissues, and it maintains normal skin health . Vitamin A can be obtained from dietary sources such as retinoids found in animal tissues and provitamin A carotenoids found in plant tissues . Ensuring an adequate intake of vitamin A is crucial for maintaining healthy eyesight and overall eye health .
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| The paper does not directly mention how vitamin A contributes to maintaining healthy eyesight. | |
| Vitamin A is important for healthy eyesight as it is needed by the retina to form the light-absorbing molecule retinal, which is necessary for low-light and color vision. | |
30 Mar 2020 2 Citations | Vitamin A helps protect against night blindness and dry eyes. It is found in foods such as beef or chicken liver, eggs, butter, and milk. |
| Vitamin A is essential for vision as it serves as the photosensitive chromophore in the visual pigments of the retina. |
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