Final answer:
Neuro-chemical messages processed by the rods and cones of the retina travel through the optic nerve to the brain.
Step-by-step explanation:
Rods and cones, which are photoreceptor cells in the retina, process neuro-chemical messages related to vision. These messages travel through the optic nerve to the brain for further processing and interpretation.
When light enters the eye, it stimulates the rods and cones to convert the light energy into electrical signals. These electrical signals are then transmitted to the bipolar cells, followed by the ganglion cells. The axons of the ganglion cells converge to form the optic nerve, which carries the visual information to the brain.