“Cataract surgery may lower the risk of dementia”

cataract surgery

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(Seoul = Yonhap News) Reporter Seonggan Han = People who have had cataract surgery may have a lower risk of all forms of dementia, including Alzheimer’s, a study has found.

Cataract is an ophthalmic disease in which vision deteriorates as the lens of the eye becomes cloudy with age, and can be treated with intraocular lens replacement surgery. Cataracts occur in more than 50% of people over the age of 80.

UPI News reported on the 6th that this was confirmed as a result of a follow-up study conducted between 1994 and 2018 by a research team led by Dr. did.

The research team conducted a cognitive function test on them once every two years with the Cognitive Abilities Screening Instrument (CASI).

CASI is a cognitive function test that monitors dementia and disease progression and evaluates attention, concentration, orientation, short- and long-term memory, language and visual skills.

Those who scored significantly lower in this test, which was scored out of 100, performed a neurological examination for the diagnosis of dementia.

Among the follow-up study subjects, 45% of cataract patients (1382 patients) had cataract surgery.

They found that the incidence of all forms of dementia was about 30% lower 10 years after surgery.

During the study period, 709 people were diagnosed with Alzheimer’s dementia and 853 people were diagnosed with other forms of dementia.

However, those who had glaucoma surgery did not see this reduction, the researchers assessed.

Glaucoma is a disease that damages the optic nerve of the retina as the outlet of aqueous humor, a fluid in the eye that supplies nutrients and maintains intraocular pressure, narrows, and the intraocular pressure rises.

Visual impairment can increase the risk of all forms of dementia. This is because it is difficult to lead an independent daily life, and as the quality of life decreases, physical and mental activities are atrophied.

Commenting on the findings, Dr Howard Pilitt of the Alzheimer’s Drug Discovery Foundation is an example of how sensory changes with age can increase the risk of dementia.

The results of this study were published in the latest issue of the Journal of the American Medical Association – JAMA Internal Medicine.

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