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Concept information

Eye Diseases > Vision Disorders > Blindness > Hemianopsia
... > Nervous System Diseases > Neurologic Manifestations > Sensation Disorders > Vision Disorders > Blindness > Hemianopsia
... > Pathological Conditions, Signs and Symptoms > Signs and Symptoms > Neurologic Manifestations > Sensation Disorders > Vision Disorders > Blindness > Hemianopsia

Preferred term

Hemianopsia  

Type

  • mesh:Descriptor

Definition

  • 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.

Broader concept

Entry terms

  • Hemianopia

Allowable Qualifier(s)

In other languages

URI

http://data.loterre.fr/ark:/67375/JVR-KLSVM25M-F

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