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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."<ref name="MeSHhemianopsia">{{MeSH}}</ref>
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."<ref name="MeSHhemianopsia">{{MeSH}}</ref> 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."


==Classification==
==Attribution==
Subtypes include:
{{WPAttribution}}
* '''Altitudinal hemianopsia''', "characterized by a visual defect above or below the horizontal meridian of the visual field."<ref name="MeSHhemianopsia">{{MeSH}}</ref>
* '''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."<ref name="MeSHhemianopsia">{{MeSH}}</ref>
* '''Binasal hemianopsia''' "consists of loss of vision in the nasal hemifields of both eyes."<ref name="MeSHhemianopsia">{{MeSH}}</ref>
* '''Bitemporal hemianopsia''' is the "bilateral loss of vision in the temporal fields."<ref name="MeSHhemianopsia">{{MeSH}}</ref>
* '''Quadrantanopsia''' "refers to loss of vision in one quarter of the visual field in one or both eyes."<ref name="MeSHhemianopsia">{{MeSH}}</ref>


==References==
==References==
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Latest revision as of 09:15, 16 September 2024

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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] 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."

Attribution

Some content on this page may previously have appeared on Wikipedia.

References

  1. ↑ Anonymous (2024), Hemianopsia (English). Medical Subject Headings. U.S. National Library of Medicine.

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