The function of the retina is to process the information gathered by photoreceptor cells and send them to the brain to decide what the picture is.
The retina is located near the optic nerve and is a thin layer of tissue that lines the back of the eye on the inside.
The purpose of the retina is to receive light that the lens has focused, convert the light into neural signals, and send these signals on to the brain for visual recognition.
The retina is a complex transparent tissue consisting of several layers, only one of which contains light-sensitive photoreceptor cells.
The light must pass through the overlying layers to reach the photoreceptor cells.