Xanthophyll ester contained in Ankang Xanthophyll Ester Blueberry Tablet Candy can effectively supplement the macular pigment density of human eyes, protect macula, promote macula development, protect eyes from light damage, delay eye aging, prevent pathological changes, protect vision and relieve asthenopia symptoms. Blueberries contain not only vitamin A, but also anthocyanins, which can directly accelerate the synthesis and regeneration of retina and rhodopsin, prevent myopia and improve vision.