Hemianopsia: Difference between revisions
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imported>Robert Badgett (New page: In medicine, a '''hemianopsia''' is a neurological sign (medical) on physical examination that is "oartial or complete loss of vision in one half of the visual field(s) of one ...) |
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In [[medicine]], a '''hemianopsia''' is a neurological [[sign (medical)]] on [[physical examination]] that is " | 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> | ||
==Classification== | ==Classification== | ||
Subtypes include: | Subtypes include: | ||
* '''Altitudinal hemianopsia''', "characterized by a visual defect above or below the horizontal meridian of the visual field."<ref>{{MeSH}}</ref> | * '''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>{{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>{{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>{{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>{{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== | ||
<references/> | <references/> | ||
Revision as of 07:07, 18 February 2009
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]
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.