Visual pathway




Features 

Superior quadrantanopia 

Inferior quadrantanopia 

Aka

Pie in the sky

Pie in the floor

Clinical

Presentation

Loss of vision in the upper quadrant of the

visual field on the opposite side of the lesion

Loss of vision in the lower quadrant of the

visual field on the opposite side of the lesion

Location of Lesion

Temporal lobe lesion (Meyer's loop)

Parietal lobe lesion (Baum's loop)

Visual Pathway

Affected

Meyer's loop (fibers looping around the

inferior horn of the lateral ventricle)

Baum's loop (fibers running through the

parietal lobe)



Reference: 

1. Comprehensive ophthalmology, A K Khurana, 7th edition

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