Vitamin B12 is an essential vitamin that plays an important role in the health of our eyes. It is a water-soluble vitamin that is essential for the formation of red blood cells, DNA synthesis and the body’s energy balance. The eye is a complex organ that requires a high level of activity and energy to function optimally. Vitamin B12 supports eye health in several ways. It is involved in the formation of the myin sheath, which surrounds the nerve fibers of the optic nerve and protects them from damage. An adequate supply of vitamin B12 can therefore help to reduce the risk of nerve damage in the eye. In addition, vitamin B12 plays an important role in the production of melatonin, a hormone that regulates the sleep-wake rhythm. Through normal melatonin synthesis, vitamin B12 can help to improve the quality of sleep, which in turn can have a positive effect on eye regeneration. A vitamin B12 deficiency can lead to various eye problems. One of the most common consequences is an increased risk of macular degeneration, an age-related eye disease that can lead to vision loss. Dry and irritated eyes, eye tremors and difficulty concentrating can also occur. To maintain a sufficient level of vitamin B12 in the body, it is important to eat a balanced diet. Vitamin B12 is found almost exclusively in animal products such as meat, fish, eggs and dairy products. People who follow a vegetarian or vegan diet in particular should therefore ensure that they cover their vitamin B12 requirements with supplements or fortified foods. Vitamin B12 is an important vitamin for the health of our eyes. It supports nerve function and can reduce the risk of various eye problems. A balanced diet rich in vitamin B12 can help to maintain eye health in the long term.