Homonymous Hemianopia
Pronunciation: hoh-MON-i-mus HEM-ee-an-OH-pee-ah
Visual field defect affecting the same side of both eyes, commonly resulting from stroke affecting the visual pathways.
Full Definition
Homonymous hemianopia is a visual field defect characterized by loss of vision in the same half of the visual field in both eyes, typically caused by damage to the optic tract, optic radiation, or visual cortex. This condition commonly occurs following stroke affecting the posterior cerebral artery territory or parietal/temporal lobe lesions. In rehabilitation medicine, homonymous hemianopia significantly impacts functional mobility, reading, driving, and activities of daily living. Patients may exhibit visual scanning deficits, neglect-like behaviors, or difficulty navigating obstacles on the affected side. Assessment involves visual field testing, and treatment includes visual scanning training, prism glasses, and compensatory strategies.
Usage
Usage note: Specify which side is affected (left/right) and distinguish from neglect syndrome in documentation.
In Context
- "Left homonymous hemianopia significantly impacts the patient's ability to navigate safely in the environment." — occupational therapy evaluation
- "Visual scanning techniques are essential for patients with homonymous hemianopia to compensate for field loss." — rehabilitation treatment plan