It can be associated with a lesion of an optic radiation.
2.
Retinal lateral geniculate bodies, where optic radiations continue to the visual cortex.
3.
Neurons of the LGN send their axons through the optic radiation, a direct pathway to the primary visual cortex.
4.
He demonstrated that homonymous hemianopsia was caused by lesions in the occipital lobe and optic radiation as well as the optic tract.
5.
From the lateral geniculate body, fibers of the optic radiation pass to the visual cortex in the occipital lobe of the brain.
6.
If a lesion only exists in one optic radiation, the consequence is called quadrantanopia, which implies that only the respective superior or inferior quadrant of the visual field is affected.
7.
The "'optic radiations "', one on each side of the brain, carry information from the thalamic lateral geniculate nucleus to layer 4 of the visual cortex.
8.
The tracts project to a relay station in the midbrain called the lateral geniculate nucleus, part of the thalamus, and then to the visual cortex along a collection of nerve fibers called the optic radiation.
9.
Sensory visual information is sent from the retina of the eye to the Lateral geniculate nucleus ( LGN ) in the Thalamus, which relays the visual information to the primary visual cortex by the fibers of the optic radiation.
10.
If Meyer's loop ( temporal pathway ) is lesioned, the vision loss is superior ( colloquially referred to as " pie in the sky " ); if optic radiation ( parietal pathway ) is lesioned, the vision loss is inferior.
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