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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. [6] Vitamin A in the form of retinoic acid is essential to normal epithelial cell ...

  3. Rhodopsin - Wikipedia

    en.wikipedia.org/wiki/Rhodopsin

    It mediates scotopic vision, which is monochromatic vision in dim light. [7] [19] Rhodopsin most strongly absorbs green-blue light (~500 nm) [20] [21] and appears therefore reddish-purple, hence the archaic term "visual purple". Several closely related opsins differ only in a few amino acids and in the wavelengths of light that they absorb most ...

  4. Adaptation (eye) - Wikipedia

    en.wikipedia.org/wiki/Adaptation_(eye)

    Night vision is of lower quality than day vision because it is limited in resolution and colors cannot be discerned; only shades of gray are seen. [1] In order for humans to transition from day to night vision they must undergo a dark adaptation period of up to two hours [ 2 ] in which each eye adjusts from a high to a low luminescence "setting ...

  5. The Fall Superfood That Beat Out Grapefruit as a Nutrition ...

    www.aol.com/fall-superfood-beat-grapefruit...

    Vitamin C: 18.4 mg. Vitamin E: 3.27 mg. ... It’s known for its ability to improve vision and even help prevent age-related ... a leading cause of blindness and vision problems during the aging ...

  6. Vitamin A deficiency - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A_Deficiency

    Vitamin A supplementation of children under five who are at risk of VAD has been found to reduce all‐cause mortality by 12 to 24%. [30] Side effects of vitamin A supplements are rare. Vitamin A toxicity is a rare concern associated with high levels of vitamin A over prolonged periods of time.

  7. Dementia Doctors Share The Changes They Would Make Today For ...

    www.aol.com/dementia-doctors-share-changes-today...

    Vitamins including C, D, E, and B12 have all been found to promote cognitive function, according to a 2021 review in the Journal of Clinical and Translational Research, as did omega 3 fatty acids ...

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