Published on: June 19, 2012
by The Alzheimer’s Association:
Vision problems are a concern because more than sixty percent of individuals with Alzheimer’s will have a decline in some sort of visual capacity. Problems most often arise in four areas: motion blindness, depth perception, color perception, and contrast sensitivity.
Some people with Alzheimer’s are affected by motion blindness and are unable to sense movement. For these people they view the world as a series of still frames, rather than a “movie” that most people see. Doctors have theorized that this view of the world causes affected persons to become lost, even in familiar surroundings.
Persons with Alzheimer’s may also lose depth perception. Three-dimensional objects may begin to appear flat. This lack of perception could make shadows or a dark rug look like holes.
Many people will experience their color perception diminish as they age. However, persons with Alzheimer’s seem to experience a greater deficit of color perception, especially with colors in the blue-violet range.
The ability to see contrast between colors, not just the color itself, also is reduced in persons with Alzheimer’s. For example, if a bathroom has the same color toilet as the floor and walls, the person may have difficulty finding the toilet.
Tips for caregivers to help the individual with Alzheimer’s:
Source: Massachusetts Chapter newsletter
Older people who report greater levels of social engagement have more robust gray matter in regions of the brain relevant in dementia, according to new research led by scientists at the University of Pittsburgh Graduate School of...
In a new study, University of Nebraska–Lincoln sociologist Marc A. Garcia explored how educational attainment can benefit cognitive health in later life, and whether there are differences in its benefits among minorities. Garcia and his co-authors...
A genetic variation in some people may be associated with cognitive decline that can’t be explained by deposits of two key proteins associated with Alzheimer’s disease, amyloid β and tau, according to a study...
The material presented through the Think Tank feature on this website is in no way intended to replace professional medical care or attention by a qualified practitioner. WBHI strongly advises all questioners and viewers using this feature with health problems to consult a qualified physician, especially before starting any treatment. The materials provided on this website cannot and should not be used as a basis for diagnosis or choice of treatment. The materials are not exhaustive and cannot always respect all the most recent research in all areas of medicine.