Which two carotenoids accumulate in the macula of the eye, functioning as natural filters against damaging high-energy blue light?
Answer
Lutein and zeaxanthin
Lutein and zeaxanthin are specifically mentioned as crucial carotenoids, separate from lycopene, that offer benefits for maintaining visual health. Their specialized function involves accumulating directly within the macula, which is a critical part of the retina responsible for sharp central vision. Once concentrated there, these compounds act as natural optical filters. Their protective action is directed against high-energy blue light, which can potentially cause damage over time, making regular consumption of foods rich in these compounds a proactive measure against age-related vision impairment, such as macular degeneration (AMD).
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