Eyes are the structural organs that contain the retina, a specialized type of brain tissue that contains the photoreceptors and interneurons that convert light into electrochemical signals that travel along the fibers of the optic nerve to the brain.
Eyes are the structural organs. These structural organs contain the retina. The retina is a specialized type of brain tissue. This specialized type of brain tissue contains the photoreceptors and interneurons. These photoreceptors and interneurons convert light into electrochemical signals. These electrochemical signals travel along the fibers of the optic nerve to the brain.