Ja Iq

30° Visual field

Sector-shaped, homonymous defects in the right inferior quadrant with good congruence, no macular sparing and poor reading ability

Indicates damage to the visual cortex [on the left side] (caudal portion of the optic radiations damaged -see ■ Fig. 3.7c); respects the border between the superior and inferior quadrants, which are divided by the calcarine fissure; the lesion has damaged the inferior half of the primary visual cortex

Small homonymous sectors of loss in the right superior quadrant with very good congruence; in addition it respects both the vertical and horizontal meridians, no macular sparing, poor reading ability

Visual field defects

Pathogenesis/differential diagnosis Bilateral homonymous hemianopsias

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