The preparation Doppelherz Activ Strong Vision 5 is a composition of substances with proven, beneficial effects on the camera vision: improving visual acuity and prevent eye fatigue. It is especially recommended for people working at the computer, prone to eye fatigue, drivers and the elderly. Action: The anthocyanins contained in bilberry fruits influence the improvement of microcirculation in the eye, which increases the supply of oxygen and nutrients. They enable faster adaptation of the eye to changing light conditions (after dark, with variable light intensity). This has an impact on increasing the field of view and improve visual acuity. The influence of the components contained in the black berries on the process of view was found during World War II. RAF pilots who consume substantial quantities of processed blueberries made notes a marked improvement in visual acuity, especially during night flights. Bioflavonoids Citrus increase the tightness and elasticity of small blood vessels (capillaries) in the eye, including the retina.Vitamin A accelerates the regeneration of visual purple - dye responsible for seeing in the dark. Lutein plays an important role in protecting the retina from changes caused by UV radiation and free radicals. It is produced in the body and must be supplied with food. The appreciable amounts found in green vegetables, eg. In lettuce. Zinc is a mineral that most actively collected in the eye and participates in the biochemical reactions occurring in the process of seeing.Dosage: Take one capsule daily with a meal or immediately after a meal with a sufficient amount fluid. Do not chew.