AIPGMEE 2015

In which one of the following locations might a
lesion cause a left superior homonymous
quadrantanopia?
a. Frontal lobe
b. Parietal lobe
c. Left eye
d. Temporal lobe
e. None of the above
Answer: d. This visual field loss localizes a lesion in
either the right inferior occipital or right temporal lobe
(see Fig. 12-10). Single ocular lesions do not produce
homonymous defects. When this visual field defect,
which neurologists occasionally label “pie in the sky,”
stems from a temporal lobe lesion, complex partial seizures
may be comorbid.