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2. Age-Related Eye Disease Study - Wikipedia

   en.wikipedia.org/wiki/Age-Related_Eye_Disease_Study

   The Age-Related Eye Disease Study (AREDS) was a clinical trial sponsored by the National Eye Institute that ran from 1992 to 2001. [1] The study was designed to: investigate the natural history and risk factors of age-related macular degeneration (AMD) and cataracts, and

3. Lutein - Wikipedia

   en.wikipedia.org/wiki/Lutein

   Lutein (/ ˈ lj uː t i ɪ n,-t iː n /; [2] from Latin luteus meaning "yellow") is a xanthophyll and one of 600 known naturally occurring carotenoids. Lutein is synthesized only by plants, and like other xanthophylls is found in high quantities in green leafy vegetables such as spinach , kale and yellow carrots .

4. Carotenoid - Wikipedia

   en.wikipedia.org/wiki/Carotenoid

   In plants, the xanthophyll lutein is the most abundant carotenoid and its role in preventing age-related eye disease is currently under investigation. [5] Lutein and the other carotenoid pigments found in mature leaves are often not obvious because of the masking presence of chlorophyll. When chlorophyll is not present, as in autumn foliage ...

5. Xanthophyll - Wikipedia

   en.wikipedia.org/wiki/Xanthophyll

   The group of xanthophylls includes (among many other compounds) lutein, zeaxanthin, neoxanthin, violaxanthin, flavoxanthin, and α- and β-cryptoxanthin. The latter compound is the only known xanthophyll to contain a beta-ionone ring, and thus β- cryptoxanthin is the only xanthophyll that is known to possess pro-vitamin A activity for mammals.

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7. meso-Zeaxanthin - Wikipedia

   en.wikipedia.org/wiki/Meso-zeaxanthin

   Meso-zeaxanthin, lutein, and 3R,3′R-zeaxanthin are the main carotenoids in the macula lutea, found in a ratio of 1:1:1, and are collectively referred to as macular pigment (MP). [3] Meso -zeaxanthin is concentrated at the epicentre of the macula, where it accounts for around 50% of MP at this location, with lutein dominating the peripheral ...