Bilberry fruit, also known as the small European blueberry, is from the same family as the cranberry and certain anthocyanidins and anthocyanins. They have been used for centuries to support eye and vision health. Anthocyanidins and anthocyanins are special carotenoids that have specific antioxidant activity in the eye. The average American diet provides only 823 micrograms of lutein. Research shows that 2-10 milligrams is optimal for eye health. Our product is an advanced botanical eye supplement that contains the highest quality extracts available.