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Older women with cataracts who get surgery to treat the eye problem may be less likely to die prematurely than those who don't get the operations, a recent US study suggests. Researchers examined data on 74,044 women with cataracts, including 41,735 who underwent cataract surgery. Compared to women who didn't get operations, those who did were 60% less likely to die from all causes during the study period.
"The results of this study suggest that cataract surgery may have benefits beyond improving vision even in patients who are elderly or sick," said senior study author Dr. Anne Coleman, a researcher at the Fielding School of Public Health at the University of California, Los Angeles. Cataracts often develop with age, and by age 80 roughly half of Americans either have cataracts or have had cataract surgery, according to the National Eye Institute.
Women in the current study were 71 years old, on average, and were part of the Women's Health Initiative, a study that has been running for more than two decades and collects information on demographics, medical conditions and lifestyle habits.
From 1993 to 2013, a total of 6,878 women who had cataract surgery died, as did 6,123 women with cataracts who didn't get the procedure. This translates into a mortality rate from all causes of 1.5 deaths per 100 women each year in the surgery group and 2.6 deaths per 100 women each year in the other group, researchers report online October 26 in JAMA Ophthalmology. With surgery, women also had a 37% to 69% reduced risk of death due to pulmonary, accidental, infectious, neurologic and vascular diseases, and cancer, the study also found.
The study wasn't a controlled experiment designed to prove whether or how cataract surgery might help people live longer. It's possible that other factors influence both risk of death and likelihood of getting cataract surgery, for example. "We cannot say for certain if people with cataracts who pass away are dying from factors specifically related to their vision loss (eg a fatal car accident from not being able to see well)," Coleman said by email. "But we believe people with decreased vision have decreased overall functioning with daily activities such as exercising, taking medicine and going to doctor appointments, all of which may be related to overall lifespan," Coleman added.

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