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  2. Vitamin A - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A

    Vitamin A status involves eye health via two separate functions. Retinal is an essential factor in rod cells and cone cells in the retina responding to light exposure by sending nerve signals to the brain. An early sign of vitamin A deficiency is night blindness. Vitamin A in the form of retinoic acid is essential to normal epithelial cell ...

  3. Retinol - Wikipedia

    en.wikipedia.org/wiki/Retinol

    Retinol, also called vitamin A1, is a fat-soluble vitamin in the vitamin A family that is found in food and used as a dietary supplement. [2] Retinol or other forms of vitamin A are needed for vision, cellular development, maintenance of skin and mucous membranes, immune function and reproductive development. [2]

  4. Xerophthalmia - Wikipedia

    en.wikipedia.org/wiki/Xerophthalmia

    Xerophthalmia (from Ancient Greek xērós ( ξηρός) meaning "dry" and ophthalmos ( οφθαλμός) meaning "eye") is a medical condition in which the eye fails to produce tears. It may be caused by vitamin A deficiency, [1] which is sometimes used to describe that condition, although there may be other causes.

  5. 7 Important Foods for Healthy Eyes and Vision (Besides Carrots)

    www.aol.com/lifestyle/7-important-foods-healthy...

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  6. Health effects of sunlight exposure - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_sunlight...

    Exposing skin to the ultraviolet radiation in sunlight has both positive and negative health effects. On the positive side, exposure allows for the synthesis of vitamin D 3. Vitamin D has been suggested as having a wide range of positive health effects, which include strengthening bones [1] and possibly inhibiting the growth of some cancers.

  7. Carotenoid - Wikipedia

    en.wikipedia.org/wiki/Carotenoid

    Carotenoid. Chemical structure of β- carotene, a common natural pigment. Carotenoids ( / kəˈrɒtɪnɔɪd /) are yellow, orange, and red organic pigments that are produced by plants and algae, as well as several bacteria, archaea, and fungi. [1] Carotenoids give the characteristic color to pumpkins, carrots, parsnips, corn, tomatoes, canaries ...

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