Editing Myopia (section)

==Signs and symptoms==
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| footer = Near-sighted vision vs. normal vision
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A person with myopia can see clearly out to a certain distance (the [[far point]] of the eye), but objects placed beyond this distance appear [[Defocus aberration|blurred]].<ref name="Short-sightedness myopia"/><ref name="Carr 1995">{{Citation |last1=Carr |first1=Brittany J. |title=The Science Behind Myopia |date=1995 |url=http://www.ncbi.nlm.nih.gov/books/NBK470669/ |work=Webvision: The Organization of the Retina and Visual System |editor-last=Kolb |editor-first=Helga |access-date=2023-10-25 |place=Salt Lake City (UT) |publisher=University of Utah Health Sciences Center |pmid=29266913 |last2=Stell |first2=William K. |editor2-last=Fernandez |editor2-first=Eduardo |editor3-last=Nelson |editor3-first=Ralph}}</ref> If the extent of the myopia is great enough, even standard reading distances can be affected. Upon routine examination of the eyes, the vast majority of myopic eyes appear structurally identical to nonmyopic eyes.<ref>{{Cite journal |last=Hennelly |first=Michelle L |date=2019 |title=How to detect myopia in the eye clinic |journal=Community Eye Health |volume=32 |issue=105 |pages=15–16 |issn=0953-6833 |pmc=6688402 |pmid=31409949}}</ref><ref name="Carr 1995"/>

Onset is often in school children, with worsening between the ages of 8 and 15.<ref name=Val2019>{{cite journal | vauthors = Coviltir V, Burcel M, Cherecheanu AP, Ionescu C, Dascalescu D, Potop V, Burcea M | title = Update on Myopia Risk Factors and Microenvironmental Changes | journal = Journal of Ophthalmology | volume = 2019 | pages = 4960852 | date = 2019 | pmid = 31781378 | pmc = 6875023 | doi = 10.1155/2019/4960852 | doi-access = free }}</ref><ref>{{Cite journal |last1=Recko |first1=Matthew |last2=Stahl |first2=Erin Durrie |date=2015 |title=Childhood Myopia: Epidemiology, Risk Factors, and Prevention |journal=Missouri Medicine |volume=112 |issue=2 |pages=116–121 |issn=0026-6620 |pmc=6170055 |pmid=25958656}}</ref>

Myopic individuals have [[Mydriasis|larger pupils]] than far-sighted ([[Far-sightedness|hypermetropic]]) and [[Emmetropia|emmetropic]] individuals, likely due to requiring less accommodation (which results in pupil constriction).<ref>{{Cite journal |last1=Cakmak |first1=Hasan Basri |last2=Cagil |first2=Nurullah |last3=Simavlı |first3=Hüseyin |last4=Duzen |first4=Betul |last5=Simsek |first5=Saban |date=February 2010 |title=Refractive Error May Influence Mesopic Pupil Size |url=http://www.tandfonline.com/doi/full/10.3109/02713680903447892 |journal=Current Eye Research |language=en |volume=35 |issue=2 |pages=130–136 |doi=10.3109/02713680903447892 |pmid=20136423 |s2cid=27407880 |issn=0271-3683}}</ref><ref>{{Cite journal |last1=Zhu |first1=X |last2=Ye |first2=H |last3=Yang |first3=J |last4=Lu |first4=Y |date=2015 |title=Effect of pupil size on higher-order aberrations in high-myopic pseudophakic eyes with posterior staphyloma |journal=Eye |volume=29 |issue=1 |pages=98–105 |doi=10.1038/eye.2014.242 |issn=0950-222X |pmc=4289834 |pmid=25323850}}</ref>