Bilberry Fruit Powder (Vaccinium myrtillus) After research was done, bilberry was found to help against eye fatigue, reduce eye irritation, nearsightedness and night blindness, extend the range and sharpness of vision, aid in the adaptation to darkness by accelerating regeneration of the retina and help to restrain the development of conditions such as glaucoma and cataracts. The dried berries of Bilberry are also used for their astringent qualities in the treatment of dysentery and diarrhea. Bilberry improves blood circulation by increasing the ability of fluids and nourishment to pass through veins and to capillaries. Bilberry is a beneficial herb to use during pregnancy. It can be a strong but gentle astringent and will fortify vein and capillary support; aid in kidney function and is a mild diuretic for bloating.