Cataract Surgery a Plus for Someone With Dementia, Study Says

Besides better vision, patients and caregivers report improved quality of life.

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2014-07-14

Along with improving vision, cataract surgery may slow mental decline in people with Alzheimer's disease and other types of dementia, a new study suggests.

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Better eyesight also improves their quality of life, the researchers said.

"These preliminary results indicate that improved vision can have a variety of benefits for people with dementia and their loved ones, both visual and non-visual," said expert.

Cataract surgery involves removing the eye's cloudy natural lens and replacing it with a clear artificial lens.

The study included 20 dementia patients who had cataract surgery and a control group of eight patients who did not have the procedure.

Six months after the surgery, the patients in the surgery group had significantly improved vision and quality of life, slower decline in memory and thinking, and greater improvements in behavior than those in the control group, the researchers found.

Improved quality of life was also reported by caregivers of the patients who had cataract surgery, according to the study.

"The findings need to be verified in a larger study, but they suggest the need to aggressively address dementia co-morbidities such as vision-impairing cataracts, while balancing safety and medical risks," expert added.

"If the results hold up, it will significantly affect how we treat cataracts in individuals with dementia. Other interventions to offset sensory loss -- including vision and hearing -- may help improve quality of life for people with dementia and their caregivers," expert added.

An Alzheimer's Association spokeswoman said the study supports the organization's view that people with dementia benefit from full healthcare treatment.

"Appropriate thoughtfulness and restraint are necessary when considering surgery or other procedures for people with Alzheimer's or another dementia," expert said. "However, we should not assume that medical procedures cannot be pursued or are too risky."

These results show that improving sensory abilities can provide benefits in a variety of ways -- for people with Alzheimer's and also for their caregivers, expert added.

Source: U.S. Dept. of Health & Human Services