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Posterior cortical atrophy (PCA), also called Benson's syndrome, is a rare form of dementia which is considered a visual variant or an atypical variant of Alzheimer's disease (AD). [ 1 ] [ 2 ] [ 3 ] The disease causes atrophy of the posterior part of the cerebral cortex , resulting in the progressive disruption of complex visual processing . [ 4 ]
Alzheimer's disease is the most common form of dementia, which approximately two thirds of individuals with dementia are diagnosed with. [7] It is the major cause of dementia in older adults. [ 8 ] AD has an insidious onset with worsening prognosis, and results in deterioration in memory, spatial abilities, language, and many other cognitive ...
People with vision loss from ethambutol toxicity lose vision in both eyes equally. This initially presents with problems with colors (dyschromatopsia) and can leave central visual deficits. If vision loss occurs while using ethambutol, it would be best to discontinue this medication under a doctor's supervision.
Pre-dementia or early-stage dementia (stages 1, 2, and 3). In this initial phase, a person can still live independently and may not exhibit obvious memory loss or have any difficulty completing ...
Again, dementia is a complex disease—and this is just one study. However, other studies have also found a link between having a lower level of education and a higher risk of developing dementia.
The onset of dementia can come as a shock, but various signs could predict the condition as long as 20 years before symptoms. A new study published by the RAND Corporation in California identified ...