There is evidence that bilberry can treat retinal disorders, according to WebMD. It seems to improve retina problems in individuals with diabetes or high blood pressure. Bilberry is also used to improve eyesight and treat cataracts.
Bilberry contains a large amount of the chemical anthocyanoside, which seems to treat retina problems that are caused by diabetes or high blood pressure, explains WebMD. Research shows that taking bilberry extract daily that contains 173 milligrams of anthocyanin helps improve circulation problems, particularly those associated with chronic venous insufficiency. Circulation problems may damage the eyes retina.
Bilberry extract is derived from the leaves and fruit of the bilberry plant, according to WebMD. This extract is used medicinally.