Visual field defects Flashcards
1
Q
Bitemporal superior hemianopia
A
Pressing optic chiasm from below - pituitary adenoma
2
Q
Bitemporal inferior hemianopia
A
Pressing optic chiasm from above - craniopharyngioma
3
Q
Homonymous hemianopia
A
Incongruous defect suggests optic tract lesion
Congruous suggests optic radiation/ occipital cortex
Macula sparing is occipital cortex
4
Q
Homonymous quadrantinopias
A
PITS - Parietal inferior, temporal superior
*In reality occipital lobe lesions cause quadrantanopias