Our eyes need good blood circulation to receive essential nutrients on a continual basis. They also need protection from oxidative stress generated by light exposure, other external oxidants, and free radicals generated within cells during metabolic processes. Inadequate levels of antioxidants can lead to oxidative stress, contributing to degeneration of cells and tissues in the eye.
According to the latest eye research, a healthy eye lens, iris and cornea requires vitamins C and E, lutein and zeaxanthin, together with zinc, copper and selenium to protect against oxidative damage from UV and blue light and other oxidants that can cause cataracts. A healthy retina including the macula (central retina) and the fovea (central macula) is particularly reliant upon the carotenoids lutein, zeaxanthin and lycopene. These nutrients also increase pigment density in the retina and protect against light damage. Vitamins B, C and E, and zinc, copper and selenium are needed by the retina for visual processes, and zinc is vital for metabolic enzymes in the retina and for night vision. Bilberry and blueberry anthocyanins increase the production of rhodopsin pigments (retinal purple) needed for night vision.
The Vision Factors formula includes a broad range of healing nutrients from wholesome vegetables, fruit and berries. It combines: colourful blue and purple flavonoids from bilberries and blueberries, known for their powerful vision-enhancing properties; lutein and zeaxanthin, the deep orange-yellow carotenoids from Mexican marigolds, which concentrate in the lens and retina of the eye and protect it against damage from light and other oxidative stresses; red lycopene from tomatoes, a powerhouse antioxidant that protects the cells of the eyes from free radicals; and the antioxidants CoQ10 and vitamins C and E; as well as B vitamins, zinc, selenium and copper, nutrients shown to be especially important to eye health.