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Vision impairment associated with all cause mortality, says Lancet study
The global population is aging, and so are their eyes. In fact, the number of people with vision impairment and blindness is expected to more than double over the next 30 years. The researchers conducted research to systematically identify studies describing the association between vision impairment and mortality, and to assess the association between vision impairment and all-cause mortality.
A meta-analysis in The Lancet Global Health, consisting of 48,000 people from 17 studies, found that those with more severe vision impairment had a higher risk of all-cause mortality compared to those that had normal vision or mild vision impairment.The number of individuals with vision impairment worldwide is increasing because of an ageing population. We aimed to systematically identify studies describing the association between vision impairment and mortality, and to assess the association between vision impairment and all-cause mortality.
According to the data, the risk of mortality was 29% higher for participants with mild vision impairment, compared to normal vision. The risk increases to 89% among those with severe vision impairment.
Importantly, four of five cases of vision impairment can be prevented or corrected. Globally, the leading causes of vision loss and blindness are both avoidable: cataract and the unmet need for glasses.
The study's lead author, Joshua Ehrlich, M.D., M.P.H., sought to better understand the association between visual disabilities and all-cause mortality.
The work compliments some of Ehrlich's recent research, also in The Lancet Global Health Commission on Global Eye Health, that highlighted the impact of late-life vision impairment on health and well-being, including its influence on dementia, depression, and loss of independence.
"It's important these issues are addressed early on because losing your vision affects more than just how you see the world; it affects your experience of the world and your life," says Ehrlich. "This analysis provides an important opportunity to promote not only health and wellbeing, but also longevity by correcting, rehabilitating, and preventing avoidable vision loss across the globe."
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Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751