Editing Refractive error (section)

===Environmental===
In studies of the genetic predisposition of refractive error, there is a correlation between environmental factors and the risk of developing myopia.<ref name=":0">{{cite journal|last=Barnes|first=Katherine|date=Feb 2013|title=Genome-wide meta-analyses of multiancestry cohorts identify multiple new susceptibility loci for refractive error and myopia|journal=Clinical Genetics|volume=45|issue=3|pages=314–8|doi=10.1111/j.1399-0004.2010.01592.x|pmc=3740568|pmid=23396134}}</ref> Myopia has been observed in individuals with visually intensive occupations.<ref name="Wojciechowski 301–320"/> [[Reading]] has also been found to be a predictor of myopia in children. It has been reported that children with myopia spent significantly more time reading than non-myopic children who spent more time playing outdoors.<ref name="Wojciechowski 301–320"/> Additionally, focusing on near objects for long periods of time - such as when reading, looking at close screens, or writing - has been associated with myopia.<ref>{{Cite journal |last1=Huang |first1=Hsiu-Mei |last2=Chang |first2=Dolly Shuo-Teh |last3=Wu |first3=Pei-Chang |date=2015-10-20 |editor-last=Jhanji |editor-first=Vishal |title=The Association between Near Work Activities and Myopia in Children—A Systematic Review and Meta-Analysis |journal=PLOS ONE |language=en |volume=10 |issue=10 |pages=e0140419 |doi=10.1371/journal.pone.0140419 |pmid=26485393 |pmc=4618477 |bibcode=2015PLoSO..1040419H |issn=1932-6203|doi-access=free }}</ref><ref>{{Cite journal |last1=Dutheil |first1=Frédéric |last2=Oueslati |first2=Tharwa |last3=Delamarre |first3=Louis |last4=Castanon |first4=Joris |last5=Maurin |first5=Caroline |last6=Chiambaretta |first6=Frédéric |last7=Baker |first7=Julien S. |last8=Ugbolue |first8=Ukadike C. |last9=Zak |first9=Marek |last10=Lakbar |first10=Ines |last11=Pereira |first11=Bruno |last12=Navel |first12=Valentin |date=2023-01-03 |title=Myopia and Near Work: A Systematic Review and Meta-Analysis |journal=International Journal of Environmental Research and Public Health |language=en |volume=20 |issue=1 |pages=875 |doi=10.3390/ijerph20010875 |pmid=36613196 |pmc=9820324 |issn=1660-4601|doi-access=free }}</ref> [[Socioeconomic status]] and higher levels of education have also been reported to be a risk factor for myopia.<ref>{{Cite journal |last1=Foster |first1=P J |last2=Jiang |first2=Y |date=February 2014 |title=Epidemiology of myopia |journal=Eye |language=en |volume=28 |issue=2 |pages=202–208 |doi=10.1038/eye.2013.280 |pmid=24406412 |pmc=3930282 |issn=0950-222X|doi-access=free }}</ref> [[Ptosis (eyelid)|Blepharoptosis]] can also induce refractive errors.<ref>{{cite journal |last1=Owji |first1=N |last2=Khalili |first2=MR |last3=Bazrafkan |first3=H |last4=Heydari |first4=M |title=Long-term outcome of refractive errors in patients with congenital blepharoptosis who have undergone ptosis surgery. |journal=Clinical & Experimental Optometry |date=September 2022 |volume=105 |issue=7 |pages=715–720 |doi=10.1080/08164622.2021.1973344 |pmid=34538220|s2cid=237573319 }}</ref>