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Another pigment found in the leaves of many plants is carotene. Carotene absorbs blue-green and blue light. The light reflected from carotene appears yellow. Carotene is also a large molecule (C 40 H 36) contained in the chloroplasts of many plants.
Benefit for eyesight health, better vision. The benefit of these two carotenoids is to absorb light in the blue-green region of the visible spectrum. In humans their roles are to improve visual function and to act as antioxidants in order to protect the macula from damage by oxidative stress.