This may be true for elderly people. A Reuters Health article sites findings published in the American Journal of Epidemiology. The study suggests, but does not confirm, a link between untreated vision problems in older Americans and dementia. Read the study here.
In the article Dr. Mary A.M. Rogers, a research assistant professor of internal medicine at the University of Michigan in Ann Arbor, recommends seeing an ophthalmologist. However, a VSP Network optometrist can also diagnose and treat vision problems as well as manage or co-manage eye health disorders.