QuestionSBA
QuestionChoice
Damage to the right optic nerve causes right-sided monocular vision loss, meaning the patient is unable to see anything from the right eye.
10005508
c
Right optic nerve
QuestionChoice
This causes contralateral (right) homonymous hemianopia.
10005510
e
Left optic tract
QuestionChoice
This causes contralateral (left) homonymous hemianopia.
10005509
d
Right optic tract
QuestionChoice
Damage to the left optic nerve causes left-sided monocular vision loss, meaning the patient is unable to see anything from the left eye.
10005507
b
Left optic nerve
QuestionChoice
The optic chiasm is where the fibres of the left and right nasal retina cross over, correlating to the vision from the temporal visual fields. Therefore damage to this area causes temporal field loss on both sides. The easiest way to understand this concept is to learn the optic tract diagram and draw it out in exam questions.
10005506
a
Optic chiasm
Concept
Chapter
2693
3833
Visual pathway anatomy
Topic
152
Neuroscience
13648
A 67-year-old gentleman with a known pituitary adenoma presents with bitemporal hemianopia visual field loss.

Which part of the optic tract is most likely to be affected?
a