Study Links E-Cigarette use to Vision Impairment

Aug.05.2022
Study Links E-Cigarette use to Vision Impairment
A study found that e-cigarette users are 34% more likely to have visual impairments than non-users, linking solvents in e-liquids to oxidative stress.

A study titled "Association between e-cigarette use in the United States and vision impairment" analyzed data from 1,173,646 adults between the ages of 18 and 50 over the period of 2016 to 2018. The results indicate that e-cigarette users have a 34% higher likelihood of vision impairment compared to non-users, while former users have a 14% higher likelihood.


A team of researchers have concluded that solvents in e-cigarette liquids may damage tear ducts and cause "oxidative stress" in the body, which is linked to worsening eyesight. Another recent study published in the Nicotine & Tobacco Research journal by the University of California, Los Angeles emphasized the relative safety of smokeless tobacco products and how switching from combustible cigarettes to these products may be associated with a reduced risk of cardiovascular disease among smokers.


A team of researchers from the University of California, Los Angeles, the University of California, San Francisco, Boston University, and the University of Texas at Arlington conducted a study titled "Association of Smokeless Tobacco Use With Increased Cardiovascular Risk: Insights From The Tobacco and Health Study Population Assessment".


As part of the Population Assessment of Tobacco and Health (PATH) study, researchers analyzed data from a nationally representative sample of 4,347 adult participants who provided urine and blood samples during the 2013-14 period. Among this group, 3,034 participants exclusively used traditional cigarettes, 338 exclusively used smokeless tobacco, and 975 had never used any tobacco products.


According to compiled data, despite similar nicotine levels, non-smokers of tobacco have significantly lower disease biomarkers. "Our findings suggest that despite higher nicotine levels, exclusive non-smokers have significantly lower concentrations of inflammation and oxidative stress biomarkers compared to smokers," said Mary Rezk-Hanna, assistant professor of nursing at the University of California, Los Angeles. She added that the levels of these biomarkers in non-smoke tobacco users are similar to those who have never smoked.


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