homonymous hemianopia

medical disorder

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Last updated

June 29, 2026

Quick Summary

Homonymous hemianopia is a visual field defect characterized by the loss of vision in the same half of the visual field in both eyes. This condition typically arises from damage to the visual pathways behind the optic chiasm, often affecting the occipital lobes of the brain.12

Causes can include strokes, tumors, or other injuries to these brain regions. For example, damage to one occipital lobe can result in the loss of sight in the visual field on the opposite side of the body. This specific pattern of vision loss helps medical professionals pinpoint the location of the neurological issue.12

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nervous system disease
Cerebral hemispheres
…to one side results in homonymous hemianopia, the loss of all sight in the field of vision on the opposite side. Compression of the optic chiasm, usually by a tumour of the pituitary fossa, may result in the “blinkers” effect. At the optic chiasm the optic nerve fibres from the…
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…to one side results in homonymous hemianopia, the loss of all sight in the field of vision on the opposite side. Compression of the optic chiasm, usually by a tumour of the pituitary fossa, may result in the “blinkers” effect. At the optic chiasm the optic nerve fibres from the…
Read More

visual field defect
…left eye fields is called homonymous hemianopia, whereas defects involving the outer or inner halves of both visual fields are called bitemporal or binasal hemianopia, respectively.
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…left eye fields is called homonymous hemianopia, whereas defects involving the outer or inner halves of both visual fields are called bitemporal or binasal hemianopia, respectively.
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