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The Ophthalmology
Survival Guide
Homonymous Hemianopia
Lesions posterior to the chiasm produce defects that are homonymous (on the same side) and in the field of vision opposite the side of the lesion.
Survival Tips!
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Lesions of the optic chiasm, or posterior to the chiasm (i.e. on the brain side of the chiasm), produce visual field defects that are bilateral and fairly or highly symmetric.
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For example, a lesion of the right optic tract produces a homonymous defect in the left visual field of each eye.
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