Visionex®

USANA’s Visionex supplement is designed to help maintain long-term eye health and uspport visual performance.

The Benefits of Visionex

One important reason for the loss of visual acuity over time is the damage to our eyes caused by environmental dactors. Except when we are asleep, our eyes are constantly exposed to environmental elements such as air pollution, dryness, and oxidative damage from sunlight. The ingredients found in Visionex work together to help support healthy vision. The formula is designed to help maintain eyesight conditions associated with sunlight damage, cataracts, and age-related macular degeneration.

Supplementation with the lutein and zeaxanthin in Visionex can also help preserve visual function.

The Science of Visionex

When light shines through the inner layers of the retina, it is filtered through the yellow pigment of the macula. The macula is especially vulnerable to oxidative damage because it has a high metabolic rate and because the light focused on it encourages the production of free radivals. The yellow pigment helps protect the sensitive receptors in the macula from the potentially harmful effects of short-wavelength light.

Macular pigment includes the carotenoids lutein and zeaxanthin, an isomer of lutein, which protect eye health in two ways: first as filters that absorb some of the high-energy blue light and, second, as antioxidants that quench light-induced free radicals and reactive oxygen species.

Average levels of macular pigment tend to be low, especially in those who do not eat many fruits and vegetables. And maintaining an adequate level is important, not only for long-term eye health, but also because macular pigment optical density(MPOD) has been linked to visual performance. Supplementing with lutein and zeaxanthin can help improve MPOD, which may help support eye health conditions.

In addition to lutein and zeaxanthin, the Visionex formulation contains three other important nutritional aids to eye health:bilberry extract, vitamin C, and zinc. The bilberry fruit is rich in antioxidant anthocyanosides and has been shown to help support eye health.Vitamin C provides additional antioxidant protection, especially to the retina, where the concentration of vitamin C is significantly higher than that found in the blood. And zinc appears to provide an additive effect to antioxidants in promoting good visual acuity.

The USANA Difference

Sun exposure and screen time in front of a computer’s glare can take a toll on your vision. Guard your long-term eye health with proper protection, such as sunglasses, and provide your eyes with the dietary cartenoids they need. The link between lutein and zeaxanthin and eye health are so strong that several national and regional health organizations have recommended an increase of dietary lutein. The amounts of lutein, zeaxanthin, and other eye-supporting nutrients working together in Visionex can help protect the future of your eyesight.

Recommended Use: promotes healthy eyes and reduces the risk of cataracts and age-related macular degeneration.
recommended adult dose: take two (2) tablets daily with meals. take a ffew hours before or after taking medication.
Each tablet contains: Medicinal Ingredients

    vitamin c (calcium, magnesium, potassium, and zinc ascorbates) 250 mg
    zinc (citrate) 5 mg
    bilberry fruit extract (vaccinuum myrtillus, 100:1, equiv. to 2.5 g fresh fruit) 25 mg
    lutein (containing 0.3 mg of zeaxanthin) 5 mg
    zeaxanthin 0.7 mg

Non-Medicinal Ingredients: microcrystalline cellulose, croscarmellose sodium, ascorbyl palmitate, dextrin, dextrose, soy lecithin, carboxymethylcellulose sodium, sodium citrate.

keep out of reach of children. consult your physician if you are pregnant, nursing, taking a prescription drug, or have a medical condition. consult a physician if symptoms persist or worsen. zinc supplementation can cause a copper deficiency.
do not use if the safety seal under the cap is broken or missing.
manufactured by: usana health sciences, inc. salt lake city, 84120 usa
distributed by: usana canada company, 80 innovation drive, woodbridge, ontario l4h ot2
store below 25 °C.
made in usa

References

age-related eye disease study research group. a randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins c and e, beta carotene, and zinc for age-related macular degeneration and vision loss: areds report no. 8 2001. arch ophthalmol 119(10):1417-36.
canter ph, ernst e. anthocyanosides of vaccinium myrtillus (bilberry) for night vision-a systematic review of placebo-controlled trials. 2004. surv ophthalmol 49(1):38-50.
cejkova j, stipek s, crvoska j, ardan t, platenik j, cejka c, midelfart a. uv rays, the prooxidant/antioxidant imbalance in the cornea and oxidative eye damage. 2004. physiol res 53(1):1-10.
jacques pf, taylor a, moeller s, hankinson se, rogers g, tung w, ludovico j, willet wc, chylack lt jr. long-term nutrient intake and 5-year change in nuclear lens opacities. 2005. arch ophthalmol 123(4):517-26.
kulick km, hoffman cj. nutrition supplement usage recommendation by eye care specialists for macular degeneration of the eye: a statewide survey of michigan. 1995. topics in clinical nutrition 10(4):67-77.
larkin m. vitamins reduce risk of vision loss from macular degeneration. 2001. lancet 20;358(9290):1347.
larson t, coker j. the perceptions, recommendations, and educational materials of licensed wisconsin optometrists on lutein and zeaxanthin and eye health. 2007. journal of the american dietetic association 107(8)s1:a103.
richer s, stiles w, statkute l, pulido j, frankowski j, rudy d, pei k, tsipursky m, nyland j. double-masked, placebo-controlled, randomized trial of lutein and antioxidant supplementation in the intervention of atrophic age-related macular degeneration: the veterans last study (lutein antioxidant supplementation trial). 2004. optometry 75(4):216-29.
stringham jm, hammond br jr. dietary lutein and zeaxanthin: possible effects on visual function. 2005. nutr rev 63(2):59-64.
trieschmann m, beatty s, nolan jm, hense hw, heimes b, austerimann u, fobker m, pauleikhoff d. changes in macular pigment optical density and serum concentrations of its constituent carotenoids following supplemental health and zeaxanthin: the luna study. exp eye res. 2007 apr;84(4):718-28. epub 2006 dec 19.

 

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