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  2. Biological effects of high-energy visible light - Wikipedia

    en.wikipedia.org/wiki/Biological_effects_of_high...

    Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

  3. Health effects of sunlight exposure - Wikipedia

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

    Exposure of skin to ultraviolet radiation from sunlight presents both positive and negative health effects. On the positive side, UV exposure enables the synthesis of vitamin D3, which is essential for bone health [1] and potentially plays a role in inhibiting certain cancers. [2][3] While vitamin D can also be obtained through dietary ...

  4. Photokeratitis - Wikipedia

    en.wikipedia.org/wiki/Photokeratitis

    Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources. Photokeratitis is akin to a sunburn of the cornea and conjunctiva.

  5. Vitamin A - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A

    Significant improvement in night vision takes place within ten minutes, but the process can take up to two hours to reach maximal effect. [7] People expecting to work in a dark environment wore red-tinted goggles or were in a red light environment to not reverse the adaptation because red light does not deplete rhodopsin versus what occurs with ...

  6. Wait—Are Lemons Actually Good for You? Here’s What a ...

    www.aol.com/lifestyle/wait-lemons-actually-good...

    Lemons have long been considered a superfood for their extensive health benefits and varied recipe uses. Not only are they one of the most popular citrus fruits, but lemons are a good source of ...

  7. AMD Alliance International - Wikipedia

    en.wikipedia.org/wiki/AMD_Alliance_International

    AMD Alliance International is a non-profit coalition of the world’s leading vision, seniors and research organizations working to raise awareness of age-related macular degeneration, understanding of available options for prevention, early detection, treatment, rehabilitation and support services. It is the only international organization in ...

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