Anthocyanidin | Comprehensive Analysis of the Eye-Protective Benefits

In cities, many people strain to look at cell phones or computer screens all day long, tiring out those overused eye muscles and putting unnecessary stress upon them. Busy life, lack of rest and poor eating habits make the situation even worse. All these accelerate eye tissue aging and induce various eye problems.

Most of the eye problems are associated with increased oxidative stress and poor blood circulation around eye tissues. Anthocyanidin has been scientifically proved to reduce oxidative stress of eye tissues and at the same time promote blood circulation, resolving various eye problems.

Anthocyanidin Functions

1. Improves visual acuity

Rhodopsin is an essential element in vision formation especially under weak light environment. Anthocyanindin promotes the production and regeneration of rhodopsin, improving visual acuity.

2. Relieves various eye problems

Anthocyanindin improves blood circulation in the eyes, relieving eye strain, redness, dark circles and swelling. It also balances tear secretion and mitigates eye dryness or excessive tearing.

3. Protects retina and lens, delays eye tissue aging

Anthocyanindin possesses strong antioxidant powers that work particularly well for the eyes. It scavenges free radicals and protects retina and crystalline lens against oxidative damage, counteracting hazards from UV light or blue light (electronic screens) and delays premature eye aging.

25% Anthocyanidin versus 36% Anthocyanoside

The maximum Anthocyanidin level that could be extracted from bilberry is 25%. Some bilberry products that specify 36% actually refer to the Anthocyanoside. Anthocyanoside has a molecular structure different from Anthocyanindin in that it has a sugar moiety attached to it. “36% Anthocyanoside” is virtually equivalent to “25% Anthocyanidin.

Bilberry versus Blueberry

Bilberry is native to Northern Europe and has been used as a traditional herb for thousands of years. Blueberry on the other hand is native to North America and is used as a food in the form of jam, pie, jelly and muffin. While Blueberry is mostly cultivated, Bilberry is hardly seen in cultivation but almost entirely grown wildly. Modern research has shown that Bilberry is rich in antioxidants which work particularly well for eye health.

	Bilberry	Blueberry
Source	Grown wildly	Cultivated
Anthocyanindin Types	More than 15 types	1-2 types
Anthocyanindin Content	High (10 times higher than blueberry)	Low

Suitable for:

ü Eye strain, redness, dryness or excessive tearing

ü Dark eye circle or eye swelling

ü Discomforts from contact lens

ü Shortsightedness, farsightedness

ü Middle-aged and elderly adults with declining vision

ü After eye surgeries

Cyana Bilberry Extract - 60 Capsules
Features and benefits
• Rich in anthocyanins and high absorption
• Good for eye and vision health
• Provides antioxidant support
Ingredients
Each capsule contains bilberry extract 150 mg with anthocyanins 37.5 mg

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Research references：

· Bao L, et al. Fitoterapia 2010;81:1094-101.

· Erlund I, et al. Am J Clin Nutr 2008;87 :323–31 .

· Ghosh D and Konishi T. Asia Pac J Clin Nutr 2007 ;16:200–8.

· SanGiovanni JP, Chew EY. Prog Retin Eye Res 2005;24:87-138.

· Shukitt-Hale B, et al. J Agric Food Chem 2009;56:636–41 .

· Yuan JP, et al. Mol Nutr Food Res 2011;55:150-65.

· Zafra-Stone S, et al. Mol Nutr Food Res. 2007 ;51 :67 5–83.