Blueberries may also offer significant protection against the development of glaucoma because of its collagen enhancing actions. Blueberry protects eyesight by accelerating the production of retinal purple, a substance that is critical for good vision. They reported an increase in the ability to see at night, quicker adjustment to darkness, faster restoration of sight after being exposed to glare and improved ability to see in extremely bright daylight. Unfortunately this herb has not received the attention it deserves in the American medical community. In Europe hundreds of tons of Blueberries are processed annually for use as an antihemorrhagic agent in treatment of eye and vascular diseases.
Blueberries inhibit blood platelets sticking together reducing blood clots.
Included in the effects of the flavonoids, including anthocyanosides, is their ability to increase the Vitamin C levels in the individual cells thus increasing the body's auto immune activities. Blueberries, because of their large percentage of anthocyanosides, decrease the permeability of the blood brain barrier, decreasing the ability of large molecules to pass into the brain. Increased blood brain permeability has been linked to auto immune diseases of the central nervous system, schizophrenia, cerebral hemorrhage, etc. The anthocyanosides inhibit destruction of the collagen of brain capillaries, thus helping to maintain and restore the brain's protection from pollutants and toxins. In many experiments and studies, anthocyanoside extracts have been shown to have beneficial results by their action of muscle relaxation.