Bilberry Extract utilizes the antioxidant properties of bilberry to support vision health. It is one of the purest forms of bilberry extract. Bilberry (botanical name Vaccinium myrtillus), also known as the Whortleberry and Bileberry, is a small shrub found on heaths where it grows to about 60 centimeters tall. You will find many eye formulas that contain it, as it is a formula that improves close and distant vision within a few days of use. Bilberry herb has more than a dozen anthocyanosides for eye health and is a popular ingredient.