Visual Field Defects

Question 1

Name the visual defect
-prechiasmal optic nerve lesion
-common causes

Answer 1

Ipsilateral monocular VFD

Optic neuritis
Eye stroke
Optic atrophy
Trauma

Question 2

Name the visual defect
-central optic chiasm
-common causes

Answer 2

Bitemporal hemianopia

Pituitary adenoma
Suprasellar aneurysm

Question 3

Name the visual defect
-lateral optic chiasm
-common causes

Answer 3

Ipsilateral monocular nasal hemianopia

Distended 3rd ventricle
ICA/PCA atheroma

Question 4

Name the visual defect
-optic tract
-common causes

Answer 4

Contralateral homonymous hemianopia

MCA stroke
Tumours

Question 5

Name the visual defect
-optic radiation
-common causes

Answer 5

Contralateral homonymous quadratopia
Parietal Inferior, Temporal Superior

MCA stroke
Tumour
Trauma

Question 6

Name the visual defect
-occipital cortex
-common causes

Answer 6

Contralateral homonymous hemianopia with macular sparing

PCA stroke
Trauma

Question 7

If the visual defect is symmetrical, where is the lesion

Answer 7

Somewhere behind the chiasm