Image Question-41
Contents
Where is the most probable site of the lesion if the following visual field defect is seen?
Jimhutchins, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Where is the most probable site of the lesion with above visual field defect?
A. Optic chiasm
B. Middle chiasmal syndrome
C. Meyer’s loop
D. Baum’s loop
Optic radiations
Optic radiations extend from Lateral Geniculate Body (LGB) to Visual cortex.
Meyer’s loop (Inferior retinal fibers) – pass through temporal lobe looping around inferior horn of lateral ventricle to the lingual gyrus (occipital lobe below calcarine sulcus).
Baum’s loop (Superior retinal fibers) – pass through the parietal lobe to the cuneus (occipital lobe above calcarine sulcus).
Ratznium at en.wikipedia, CC BY-SA 3.0 http://creativecommons.org/licenses/by-sa/3.0/, via Wikimedia Commons
