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The Effect of Lutein on the Eyes

Lutein is part of a compound group called xanthophylls, which are beta-carotene-related cartinoids. Lutein is found abundantly in the eye and is taken in supplements for eye health. The Lutein Information Bureau suggests that this natural antioxidant plays a critical role in eye health.

  1. Eye-dentification

    • Lutein, found abundantly in fruits and vegetables, is present throughout the body but is particularly abundant in the eyes. Lutein is found in the lens of the eye and in the retina, particularly in the macula, which is responsible for visual sharpness and accuracy.

    Sources

    • Lutein is found in dark, green leafy vegetables, yellow and orange fruits and vegetables, or eggs, and can also be taken as a supplement to improve eye health and prevent eye disease. Lutein supplements are commonly taken by aging people or people with a history of eye conditions.

    Free Radical Protection

    • Lutein is considered an antioxidant because it helps protect the eyes from free radicals, which are environmental influences (namely the sun's UV rays) that cause damage. Sufficient lutein in the eye's macula acts like "natural" protective sunglasses by filtering harmful blue light and UV light.

    Increased Macular Pigment Density

    • Lutein increases macular pigment density (a layer of protective tissue over the macula), which not only reinforces the eye's protective capability but strengthens the eye's vital structures, thereby preventing eye disease (particularly macular degeneration) and vision loss caused by damage and aging of the retina.

    Decreased Risk of Cataracts

    • Cataracts are a common condition of the aging eye, characterized by clouding of the eye's natural lens, which causes decreased vision. Lutein helps strengthen and protect the cells of the lens, therefore preventing cataracts.

    Supplement Side Effects

    • According to the www.clinicaltrials.gov website, Lutein supplements can be taken safely, with only the possibility of minor side effects such as difficulty swallowing the tablets and headaches.

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