Retina refers to the light-sensitive layer of tissue that lines the inside of the eye and plays a crucial role in vision. The retina is responsible for converting light into electrical signals that are sent to the brain, where they are interpreted as images.
There are several important components of the retina, including the photoreceptor cells (rods and cones), which detect light and convert it into electrical signals; the ganglion cells, which transmit the signals to the brain; and the blood vessels that supply the retina with oxygen and nutrients.