Editing Myopia (section)

===Correlations===
Numerous studies have found correlations between myopia, on the one hand, and intelligence and academic achievement, on the other;<ref>{{cite journal | vauthors = Williams KM, Hysi PG, Yonova-Doing E, Mahroo OA, Snieder H, Hammond CJ | title = Phenotypic and genotypic correlation between myopia and intelligence | journal = Scientific Reports | volume = 7 | issue = 1 | pages = 45977 | date = April 2017 | pmid = 28383074 | pmc = 5382686 | doi = 10.1038/srep45977 | bibcode = 2017NatSR...745977W }}</ref> it is not clear whether there is a [[Correlation does not imply causation|causal relationship]].<ref name="IQ2015rev">{{cite journal | vauthors = Verma A, Verma A | title = A novel review of the evidence linking myopia and high intelligence | journal = Journal of Ophthalmology | volume = 2015 | pages = 271746 | year = 2015 | pmid = 25653868 | pmc = 4306218 | doi = 10.1155/2015/271746 | doi-access = free }}</ref> Myopia is also correlated with increased [[microsaccade]] amplitude, suggesting that blurred vision from myopia might cause instability in [[fixational eye movements]].<ref>{{cite journal | vauthors = Ghasia FF, Shaikh AG | title = Uncorrected Myopic Refractive Error Increases Microsaccade Amplitude | journal = Investigative Ophthalmology & Visual Science | volume = 56 | issue = 4 | pages = 2531–5 | date = April 2015 | pmid = 25678690 | doi = 10.1167/iovs.14-15882 | doi-access = free }}</ref><ref>{{cite journal | vauthors = Alexander RG, Macknik SL, Martinez-Conde S | title = Microsaccade Characteristics in Neurological and Ophthalmic Disease | journal = Frontiers in Neurology | volume = 9 | pages = 144 | year = 2018 | pmid = 29593642 | pmc = 5859063 | doi = 10.3389/fneur.2018.00144 | doi-access = free }}</ref>