Ophthalmologists recommend adding antioxidant supplements to your daily diet to help maintain long-term eye health.
As humans age, a natural decline in visual acuity may occur. One of the most important reasons for this loss of visual acuity over time is damage from environmental factors. Except during sleep, eyes are constantly exposed to environmental factors like sunlight, dryness, and air pollution. Don’t take your vision for granted!
USANA formulated Visionex® with lutein, zeaxanthin, and bilberry extract to work together to help the retina. Visionex® also contains vitamin C along with other nutrients to help maintain the structure of the lens. Your eyes are made of delicate tissues that need protection.
View from AsktheScientists:
RIGHT NUTRITION FOR YOUR EYE HEALTH
You think about the health of your heart, brain, and bones, but what about your eyes? How important is your vision to your overall health?
The human eye detects radiation (or light) in a specific part of the spectrum we refer to as visible light. The normal human eye is capable of detecting an almost countless variety of colors within this spectrum. Our eyes can form images of objects either directly in front of us or as far as many miles away. Our eyes are so sensitive they can respond to a single photon of light. They can do this because of the high concentration of sensory receptors found in the eye. In fact, our eyes contain over 70% of all sensory receptors in the body. But the eye is only collecting and focusing light. It takes our brain to actually translate the messages the eye is perceiving to be able to “see” the world around us.
While the roles lutein and zeaxanthin play in the physiology of the eye are not completely known, the links between lutein and eye health are so strong that several national and regional health organisations have recommended the increase of dietary lutein. Lutein is believed to function in two ways: first as a filter of high-energy blue light, and second as an antioxidant that quenches light-induced free radicals and reactive oxygen species.
Zeaxanthin, a yellow carotenoid, is a modified form of lutein. In the eye, lutein is predominant in the periphery of the macula while the concentration of zeaxanthin is greatest in the very centre. This is where conditions most favour the formation of free radicals, and zeaxanthin is thought to be an even more powerful antioxidant than lutein.
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These recommendations do not replace medical advice. Always follow the recommendations of your physicians.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.