Helps support and maintain healthy vision. With lutein and blueberry extract. Helps increase level of macular pigmentation in the eyes. With botanicals. Healthy eyes. Blueberry strong contains deep purple colored european blueberry extract and bright yellow colored marigold extract, providing lutein in amounts studied to be beneficial for eye health. Blueberry. Vaccinium myrtillus is a special blueberry species native to northern europe and one of the most common wild plants in sweden. The fine blueberry extract in this tablet is made of wild lowbush vaccinium myrtillus, which is smaller than cultivated highbush blueberries.