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Hemianopsia MeSH Descriptor Data 2023


MeSH Heading
Hemianopsia
Tree Number(s)
C10.597.751.941.512
C11.966.075.500
C23.888.592.763.941.512
Unique ID
D006423
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D006423
Scope Note
Partial or complete loss of vision in one half of the visual field(s) of one or both eyes. Subtypes include altitudinal hemianopsia, characterized by a visual defect above or below the horizontal meridian of the visual field. 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. Binasal hemianopsia consists of loss of vision in the nasal hemifields of both eyes. Bitemporal hemianopsia is the bilateral loss of vision in the temporal fields. Quadrantanopsia refers to loss of vision in one quarter of the visual field in one or both eyes.
Entry Term(s)
Altidudinal Hemianopia
Altitudinal Hemianopsia
Binasal Hemianopia
Bitemporal Hemianopia
Hemianopia
Hemianopsia, Binasal
Hemianopsia, Bitemporal
Hemianopsia, Homonymous
Homonymous Hemianopia
Quadrantanopia
Quadrantanopsia
NLM Classification #
WW 276
Date Established
1966/01/01
Date of Entry
1999/01/01
Revision Date
2001/07/25
Hemianopsia Preferred
Quadrantanopsia Narrower
Bitemporal Hemianopia Narrower
Hemianopsia, Homonymous Narrower
Altidudinal Hemianopia Narrower
Binasal Hemianopia Narrower
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