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Untreated vision may contribute to dementia

May 03, 2010

New research suggests that poor vision and untreated vision may be a contributing factor in dementia.

Researchers at the University of  Michigan used data from the Health and Retirement Study and Medicare files to follow the experiences of 625 elderly participants over a period of  eight-and-a-half-year  years with normal cognition at baseline.     

Participants with very good or excellent vision at baseline had a 63% reduced risk of dementia  during the followup period. Poor vision was associated with development of dementia.

Participants with poorer vision who did not visit an ophthalmologist had a 9.5-fold increased risk of Alzheimer disease  and a 5-fold increased risk of cognitively impaired.   

For Americans aged 90 years or older, 78% who maintained normal cognition had at least one previous eye procedure compared with 52% of those with Alzheimer disease. Untreated poor vision was associated with cognitive decline, particularly Alzheimer disease.

Soruce: American Journal of Epidemiology 2010 171(6):728-735

Sayed Jovkar, M.D.

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Our Bay Area office, located at 15251 National Ave, Suite 100, Los Gatos, CA 95032, provides eyecare, eye exam, LASIK, laser vision correction, cataract and other eye surgeries for patients in the following areas: Bay Area Eye Doctor, Campbell, Cupertino, Fremont, Gilroy, Los Altos, Los Altos Hills, Los Gatos Eye Care, Milpitas, Morgan Hill, Monte Sereno, Mountain View, Palo Alto, Pleasanton, San Jose, San Martin, San Mateo, Santa Clara County, Santa Clara Valley, Saratoga, Scotts Valley, South Bay, Sunnyvale