An 80 year old man with a history of stroke presents with a lower homonymous quadrantanopia affecting the temporal side of the right visual field and the nasal side of the left visual field. Where is the lesion?
1.Right parietal lobe
2.Optic chiasm
3.Left occipital lobe
4.Left parietal lobe
5.Optic nerve
Explanation:
Temporal lobe damage results in an upper homonymous quadrantanopia. Parietal lobe damage results in a lower homonymous quadrantanopia. Bilateral occipital lobe damage can cause cortical blindness, known as