Retinal ganglion cell axons carry visual information to the brain via the optic nerve, chiasm, and tract. A small portion subserves the pupillary light reflex by leaving the optic tract to reach the mesencephalon. Other axons synapse in the lateral geniculate body, which in turn sends projections via the optic radiations to reach striate cortex in the occipital lobe. Visual information undergoes higher order processing in occipitotemporal, temporal, occipitoparietal, and parietal lobes.
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