People with untreated visual impairments were significantly more likely to develop dementia, according to a new study
. Previous studies have shown a link between cognitive and vision health. This latest research, however, was unique in the rigor with which vision was assessed and in how representative the sample was, said clinician-scientist Dr. Joshua Ehrlich, the lead author of the report published Thursday in the journal JAMA Ophthalmology. Ehrlich and his coauthors looked at data from the 2021 National Health and Aging Trends Study in the United States and included nearly 3,000 people.
There is a similar correlation between hearing loss and dementia, he added. It may be that the impairments decrease the input of our senses, which could lead to some confusion that can speed up cognitive decline, Holland said. “If you can’t feel something and know that you are injuring yourself, you’re going to get hurt. That just is the name of the game. And then the same thing when it comes to your hearing and your vision,” he added.
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