Question

Where is the lesion most likely in a homonomous hemianopia?

a. tract after chiasm
b. tract on its way back to visual cortex after geniculate body
c. one of the optic nerves before the chiasm
d. optic chiasm

Answer 1

c. The lesion in a homonymous hemianopia is most likely to be in one of the optic nerves before the chiasm.

Step-by-step explanation:

The lesion in a homonymous hemianopia is most likely to be in option c. one of the optic nerves before the chiasm. In a homonymous hemianopia, there is loss of vision in half of the visual field in both eyes.

This occurs when there is damage to one of the optic nerves before the optic chiasm. The optic chiasm is the point where the optic nerves from both eyes cross over.