the cell layers of the retina. photoreceptors (i.e. rods and cones) make up the layer closest to the top of the image.

neural component of the eye that contains photoreceptors. The retina is the first area where visual information begins to be processed before being sent to other visual processing areas like the primary visual cortex.

Learn more:

Know your brain: Retina

2-Minute Neuroscience: The Retina