Visual field defects

Question 1

How to remember the area of the brain affected in homonymous quadrantanopias

Answer 1

PITS
Parietal-Inferior
Temporal-Superior

Question 2

Incongruous (asymmetric) vs congruous (symmetrical) visual field defects

Answer 2

incongruous defects = optic tract lesion

congruous defects = optic radiation lesion

Question 3

Visual field defect which spares the macula

Answer 3

Lesion in occipital cortex

Question 4

Bitemporal hemianopia

Answer 4

lesion of optic chiasm

Question 5

In bitemporal hemianopia
- upper quadrant defect > lower quadrant defect

Answer 5

inferior chiasmal compression

• usually pituitary tumour

Question 6

In bitemporal hemianopia
lower quadrant defect > upper quadrant defect

Answer 6

superior chiasmal compression

• commonly craniopharyngioma