Hemianopsia
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In medicine, a hemianopsia is a neurological sign (medical) on physical examination that is "partial or complete loss of vision in one half of the visual field(s) of one or both eyes."[1]
Classification
Subtypes include:
- Altitudinal hemianopsia, "characterized by a visual defect above or below the horizontal meridian of the visual field."[1]
- Homonymous hemianopsia "refers to a visual defect that affects both eyes equally, and occurs either to the left or right of the midline of the visual field."[1]
- Binasal hemianopsia "consists of loss of vision in the nasal hemifields of both eyes."[1]
- Bitemporal hemianopsia is the "bilateral loss of vision in the temporal fields."[1]
- Quadrantanopsia "refers to loss of vision in one quarter of the visual field in one or both eyes."[1]
Attribution
- Some content on this page may previously have appeared on Wikipedia.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Anonymous (2024), Hemianopsia (English). Medical Subject Headings. U.S. National Library of Medicine.