Anopsia

{{Short description|Defect in one's visual field}}{{Infobox medical condition (new) | name = Anopsia | image = Gray722.png | caption = Scheme showing central connections of the optic nerves and optic tracts. (Lesions at different locations relate to different types of anopsias.) | pronounce = | field = Neurology | synonyms = Anopia | symptoms = | complications = | onset = | duration = | types = | causes = | risks = | diagnosis = | differential = | prevention = | treatment = | medication = | prognosis = | frequency = | deaths = }} An '''anopsia''', or '''anopia''', ({{ety|grc|''ἀν-'' {{nowrap|(an-)}}|without||''ὄψις'' (opsis)|sight}}) is a defect in the visual field. If the defect is only partial, then the portion of the field with the defect can be used to isolate the underlying cause. It is particularly used to describe the lack of sight in one eye.<ref>{{Cite book |last=Stanaszek |first=Walter F. |url=https://www.taylorfrancis.com/books/9781000170245 |title=Understanding Medical Terms: A Guide for Pharmacy Practice |last2=Stanaszek |first2=Mary J. |last3=Holt |first3=Robert J. |last4=Strauss |first4=Steven |date=2020-06-29 |publisher=Routledge |isbn=978-0-429-27303-2 |edition=2 |language=en |doi=10.4324/9780429273032}}</ref>

__TOC__ == Variants == Types of partial anopsia include: {{cn|date=October 2025}} * Hemianopsia ** Homonymous hemianopsia ** Heteronymous hemianopsia *** Binasal hemianopsia *** Bitemporal hemianopsia ** Superior hemianopia ** Inferior hemianopia * Quadrantanopia

==References== {{Reflist}}

== External links == {{Medical resources | DiseasesDB = | ICD10 = {{ICD10|H|53|4|h|53}} | ICD9 = {{ICD9|368.4}} | ICDO = | OMIM = | MedlinePlus = | eMedicineSubj = | eMedicineTopic = | MeshID = }} {{Eye pathology}}

Category:Visual disturbances and blindness