Health
Age-related eye disease associated with cognitive impairment
NEWS IN BRIEF — Posted May 1, 2006
Elderly patients with vision problems related to their age are more likely to score lower on tests that measure cognition, according to a study published in the April issue of the Archives of Ophthalmology.
Researchers assessed the memory and learning skills of participants in the large multicenter Age-related Eye Disease Study. Those with vision worse than 20/40 were more likely to be determined as cognitively impaired according to the Modified Mini-Mental State Exam and the Wechsler Logical Memory Scale.
The authors theorize that this finding may indicate a common root cause for both problems. It could also mean, however, that a reduction in vision was leading to a decline in participation in activities that stimulate the brain leading to a loss in a person's ability to learn and remember.
"The lack of activity may exacerbate cognitive impairment indirectly if it predisposes a person to depression and social isolation," wrote the authors.
Note: This item originally appeared at http://www.ama-assn.org/amednews/2006/05/01/hlbf0501.htm.