What is Strabismus?
{{Infobox medical condition (new) | name = Strabismus | synonyms = Heterotropia, crossed eyes, squint<ref name=Ox2017/> | image = StrabismusVL2.jpg | caption = A person with [[exotropia]], an outward deviated eye | field = [[Ophthalmology]] | pronounce = {{IPAc-en|s|t|r|ə|ˈ|b|ɪ|z|m|ə|s}}<ref name=Ox2017>{{cite web|title=Strabismus noun - Definition, pictures, pronunciation and usage notes {{!}} Oxford Advanced Learner's Dictionary|url=https://www.oxfordlearnersdictionaries.com/definition/english/strabismus|website=www.oxfordlearnersdictionaries.com|access-date=1 August 2017|language=en|url-status=live|archive-url=https://web.archive.org/web/20170801035735/https://www.oxfordlearnersdictionaries.com/definition/english/strabismus|archive-date=August 1, 2017|df=mdy-all}}</ref> | symptoms = Nonaligned [[eyes]]<ref name=NEI2016Def/> | complications = [[Amblyopia]], [[diplopia|double vision]]<ref name=Gun2015/> | onset = | duration = | types = [[Esotropia]] (eyes crossed); [[exotropia]] (eyes diverge); [[hypertropia]] (eyes vertically misaligned)<ref name=Gun2015/> | causes = Muscle dysfunction, [[farsightedness]], problems in the brain, trauma, infections<ref name=Gun2015/> | risks = [[Premature birth]], [[cerebral palsy]], family history<ref name=Gun2015/> | diagnosis = Observing light reflected from the [[pupil]]<ref name=Gun2015>{{cite journal | vauthors = Gunton KB, Wasserman BN, DeBenedictis C | title = Strabismus | journal = Primary Care | volume = 42 | issue = 3 | pages = 393–407 | date = September 2015 | pmid = 26319345 | doi = 10.1016/j.pop.2015.05.006 }}</ref> | differential = [[Cranial nerve disease]]<ref name=Gun2015/> | prevention = | treatment = [[Glasses]], surgery<ref name=Gun2015/> | medication = | prognosis = | frequency = ~2% (children)<ref name=Gun2015/> | deaths = |alt=}} '''Strabismus''' is a condition in which the eyes do not line up with e