Visual field defects

Question 1

Visual field defect in optic nerve lesions

Answer 1

ipsilateral monocular blindness

Question 2

Visual field defect in optic chiasm (central) lesions

Answer 2

bitemporal hemianopia

Question 3

Visual field defect in optic chiasm (lateral) lesions

Answer 3

ipsilateral monocular nasal hemianopia

Question 4

Visual field defect in optic tract lesions

Answer 4

contralateral homonymous hemianopia

Question 5

Visual field defect in optic radiation lesions

Answer 5

contralateral homonymous quadrantanopia

Question 6

Visual field defect in occipital cortex lesions

Answer 6

contralateral homonymous hemianopia with macular sparing

Question 7

Typical lesions affecting optic nerve

Answer 7

optic neuritis
amaurosis fugax
optic atrophy
retrobulbar optic neuropathy
trauma

Question 8

Typical lesions affecting optic chiasm (central)

Answer 8

pituitary adenoma
suprasellar aneurysm

Question 9

Typical lesions affecting optic chiasm (lateral)

Answer 9

distension of 3rd ventricle
internal carotid/posterior cerebral artery atheroma

Question 10

Typical lesions affecting optic tract

Answer 10

MCA stroke
tumours

Question 11

Typical lesions affecting optic radiation

Answer 11

MCA stroke
tumour
trauma

Question 12

Typical lesions affecting occipital cortex

Answer 12

PCA stroke
trauma