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Open AccessReview

The Pharmacological Effects of Lutein and Zeaxanthin on Visual Disorders and Cognition Diseases

1
College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
2
Tianjin Zhongyi Pharmaceutical Co., Ltd., Tianjin 300193, China
*
Author to whom correspondence should be addressed.
These authors contribute equally to this work.
Academic Editor: Derek J. McPhee
Molecules 2017, 22(4), 610; https://doi.org/10.3390/molecules22040610
Received: 21 February 2017 / Revised: 5 April 2017 / Accepted: 6 April 2017 / Published: 20 April 2017
Lutein (L) and zeaxanthin (Z) are dietary carotenoids derived from dark green leafy vegetables, orange and yellow fruits that form the macular pigment of the human eyes. It was hypothesized that they protect against visual disorders and cognition diseases, such as age-related macular degeneration (AMD), age-related cataract (ARC), cognition diseases, ischemic/hypoxia induced retinopathy, light damage of the retina, retinitis pigmentosa, retinal detachment, uveitis and diabetic retinopathy. The mechanism by which they are involved in the prevention of eye diseases may be due their physical blue light filtration properties and local antioxidant activity. In addition to their protective roles against light-induced oxidative damage, there are increasing evidences that L and Z may also improve normal ocular function by enhancing contrast sensitivity and by reducing glare disability. Surveys about L and Z supplementation have indicated that moderate intakes of L and Z are associated with decreased AMD risk and less visual impairment. Furthermore, this review discusses the appropriate consumption quantities, the consumption safety of L, side effects and future research directions. View Full-Text
Keywords: lutein; zeaxanthin; carotenoids; AMD; ARC; cataract; cognition; ADI lutein; zeaxanthin; carotenoids; AMD; ARC; cataract; cognition; ADI
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MDPI and ACS Style

Jia, Y.-P.; Sun, L.; Yu, H.-S.; Liang, L.-P.; Li, W.; Ding, H.; Song, X.-B.; Zhang, L.-J. The Pharmacological Effects of Lutein and Zeaxanthin on Visual Disorders and Cognition Diseases. Molecules 2017, 22, 610.

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