👉 Lutein, also known as rhodopsin, is a protein that plays a crucial role in vision. It helps to perceive light and is found in various parts of the eye, including the retina, which is responsible for processing visual information. Lutein also has an important role in the development and function of certain types of cells in the eye, such as the ganglion cells, which are responsible for transmitting visual signals from the retina to the brain.