Final answer:
The retina is composed of layers with photoreceptors and neurons like bipolar and ganglion cells, which process visual information.
Step-by-step explanation:
The retina is a multi-layered structure in the eye that is crucial for vision. It contains photoreceptors, specifically rods and cones, which detect light and convert it into electrical signals. These signals are then processed by other neurons including bipolar cells and ganglion cells. The outer nuclear layer contains the nuclei of rods and cones, while the bipolar cells reside in the inner nuclear layer, and the ganglion cells, which form the optic nerve, are found in the ganglion cell layer. The retinal pigment epithelium plays a supportive role for photoreceptors, including nutrient exchange and light absorption.