Posterior Cortical Atrophy

"Posterior cortical atrophy (PCA), also called Benson's syndrome, is the visual variant of Alzheimer’s disease. The disease causes shrinkage (atrophy) of the back part of the brain, causing a progressive decline in vision. People with PCA may often go to see an eye doctor first, thinking that their difficulties are due to a problem with their eyes and that they may need new glasses. Visual impairment commonly develops as people get older, and in most cases a decline in vision is due to this natural aging process. In people with PCA, the visual problems are not due to problems with their eyes. Rather, the shrinking brain can no longer interpret and process the information received from the person's healthy eyes.

In the vast majority of PCA cases, the underlying cause is Alzheimer's disease, and the brain tissue at autopsy shows an abnormal accumulation of the proteins amyloid and tau that form plaques and tangles as is seen in Alzheimer's. Although PCA is almost always caused by Alzheimer's disease, it can also be due to other diseases including Dementia with Lewy bodies and Creutzfeldt-Jacob disease. PCA is thought to affect less than 5% of people with Alzheimer's disease, although epidemiological studies are lacking and PCA has been under-recognized in the past."

 

Source: click here.

CRISIS TEXT LINE LOGO.png
  • Wix Facebook page
  • YouTube Reflection
  • Blogger App Icon
  • Wix Twitter page
  • LinkedIn App Icon
Go4Life Partnership

Dementia Society of America - PO Box 600 - Doylestown, PA 18901 USA

Dementia Society is a 501(c)(3) nonprofit organization.

Telephone 1-800-DEMENTIA (1-800-336-3684)

© 2013 - 2021 by Dementia Society, Inc. All rights reserved.

 

Trademarks include but are not limited to Dementia Society of America®, Know Dementia®, We Know You Matter®

Dementia SMART®, Dementia ANSWERS®, Dementia QUEST®, Dementia CARER®, STEP2RAISE®, Ginny Gives®, Raise Hope Now®, The Dementia Action Plan®, The Cognitive Action Plan, Better Brain Nation, and Ride Against Dementia,  Dance Against Dementia, 1-800-DEMENTIA, Dementia Diplomat, KeepSafe iD, Operation KeepSafe, D/S logo, and others.

Site Map

Last Updated

May 2021