Editing Cataract (section)

===Genetics===
[[File:Chrismas tree cataract.jpg|thumb|Christmas tree cataract (diffuse illumination)]]
The genetic component is strong in the development of cataracts,<ref>{{citation |page=77 |chapter=Molecular Genetics of Cataract |title=Genetics in Ophthalmology |publisher=Karger Medical and Scientific Publishers |year=2003 |isbn=978-3-8055-7578-2 | vauthors = Hejtmancik JF, Smaoui N }}</ref> most commonly through mechanisms that protect and maintain the lens. The presence of cataracts in childhood or early life can occasionally be due to a particular syndrome. Examples of [[Chromosomal disorder|chromosome abnormalities]] associated with cataracts include [[1q21.1 deletion syndrome]], [[cri-du-chat syndrome]], [[Down syndrome]], [[Patau's syndrome]], [[trisomy 18]] ([[Edward's syndrome]]), and [[Turner's syndrome]], and in the case of [[neurofibromatosis type 2]], [[juvenile cataract]] on one or both sides may be noted. Examples of [[single-gene disorder]] include [[Alport's syndrome]], [[Conradi's syndrome]], [[cerebrotendineous xanthomatosis]], [[myotonic dystrophy]], and [[oculocerebrorenal syndrome]] or [[Lowe syndrome]].<ref>{{Cite journal |last1=Li |first1=Jinyu |last2=Xia |first2=Chun-hong |last3=Wang |first3=Eddie |last4=Yao |first4=Ke |last5=Gong |first5=Xiaohua |date=2017 |title=Screening, genetics, risk factors, and treatment of neonatal cataracts |journal=Birth Defects Research |language=en |volume=109 |issue=10 |pages=734–743 |doi=10.1002/bdr2.1050 |issn=2472-1727 |pmc=9211061 |pmid=28544770}}</ref>