Editing Cataract (section)

===Smoking and alcohol===

[[Tobacco smoking|Cigarette smoking]] has been shown to increase the risk of age-related cataract and nuclear cataract.<ref>{{cite journal|year=2012|author=Ye J, He J, Wang C, Wu H, Shi X, Zhang H, Xie J, Lee SY.|title=Smoking and risk of age-related cataract: a meta-analysis|journal=Invest Ophthalmol Vis Sci|volume=53|issue=7|pages=3885–3895|doi=10.1167/iovs.12-9820|pmid=22599585}}</ref><ref>{{cite journal|year=2019|author=Beltrán-Zambrano E, García-Lozada D, Ibáñez-Pinilla E.|title= Risk of cataract in smokers: A meta-analysis of observational studies|journal=Arch Soc Esp Oftalmol (Engl Ed)|volume=94|issue=2|pages=60–74|doi=10.1016/j.oftal.2018.10.020|pmid=30528895|s2cid=155984835 }}</ref> Evidence is conflicting over the effect of alcohol. Some surveys have shown a link, but others that followed people over longer terms have not.<ref>{{cite journal | vauthors = Wang S, Wang JJ, Wong TY | title = Alcohol and eye diseases | journal = Survey of Ophthalmology | volume = 53 | issue = 5 | pages = 512–525 | year = 2008 | pmid = 18929762 | doi = 10.1016/j.survophthal.2008.06.003 }}</ref>