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Ch.6 Vision. 1  Describe the characteristics of light and color, outline the anatomy of the eye and its connections with the brain, and describe the process of transduction of visual information. 2  Describe the coding of visual information by photoreceptors and ganglion cells in the retina. The photoreceptors form synapses with bipolar cells, neurons whose two arms connect the shallowest and deepest layers of the retina. 2  In turn, these neurons form synapses with the ganglion cells, neurons whose axons travel through the optic nerves (the second cranial nerves) and carry visual information into the brain.
The Retina structure: The retina is a light sensitive layer at the back of the eye and covers roughly 65 percent of the interior surface of the eye. The retina contains two types of light sensitive cells called Rods & Cones. The rods respond to dim light and the cones detect color.