Category Archives: Eyes

Prevention of Cataracts: Vitamin C

Posted on June 18, 2018 by Robert Barrington

Cataracts are an opacity of the eye that is most commonly associated with age. The opacity distorts the light entering the eye and this leads to reductions in visual acuity. Studies investigating the development of cataracts suggest that oxidation of … Continue reading →

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Lutein Protects From Cataracts

Posted on July 18, 2016 by Robert Barrington

Lutein is a xanthophyll that is produced in plants and algae as part of the carotenoid synthesis pathway. Evidence suggests that lutein accumulates in the eyes of mammals including humans, and here it may have protective effects against cataracts and … Continue reading →

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Xanthophylls Protect The Eye

Posted on July 18, 2016 by Robert Barrington

Carotenoids are a structurally related group of phytonutrients, some of which possess vitamin A activity in humans. Carotenoids are pigments in nature and produce many of the red, yellow and orange colours in vegetables and some fruits. In plants, carotenoids … Continue reading →

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Antioxidants for the Eye: Xanthophylls

Posted on July 15, 2016 by Robert Barrington

The human eye is an interesting design. The design of the eye is related to the function it must play in allowing vision in the presence of damaging ultraviolet light. In this regard, comparison to the octopus eye is interesting, … Continue reading →

Posted in Beta Carotene, Carotenoids, Eyes, Lutein, Lycopene, Xanthophylls, Zeaxanthin | Comments Off on Antioxidants for the Eye: Xanthophylls

Xanthophylls For Eye Health

Posted on December 6, 2015 by Robert Barrington
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Free Radical Recycling and The Eye

Posted on May 21, 2015 by Robert Barrington

Free radicals are chemicals that possess an unpaired electron in their outer orbital. This chemical structure makes them reactive and interaction with other chemicals can cause the free radical to gain an electron. Such interactions reduce and stabilise the free … Continue reading →

Posted in Antioxidant, Carotenoids, Chalcones, Eyes, Flavonoids, Free Radicals, Glutathione, Glutathione peroxidase, Inflammation, Stilbenes, Terpenes, Vitamin C, Vitamin E | Comments Off on Free Radical Recycling and The Eye

Antioxidants to Protect the Eyes

Posted on September 8, 2014 by Robert Barrington

Cataracts are a leading cause of blindness in the elderly, and this is more true in developing nations where surgery for cataracts is less common. Cell culture experiments suggest that oxidative stress plays a role in the formation of cataracts … Continue reading →

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Homocysteine and Age-Related Macular Degeneration

Posted on July 8, 2014 by Robert Barrington

Homocysteine is an intermediate metabolite of the methionine to cysteine pathway. Under normal circumstances homocysteine is synthesised back to methionine using the salvage pathway or is further metabolised to cysteine via the enzyme cystathionine beta-synthase. However, these two pathways rely … Continue reading →

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