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Posterior cortical atrophy (PCA)

    Posterior cortical atrophy (PCA) is the degeneration of the cells at the back or posterior of the brain. The changes in the brain resemble those in someone with Alzheimer’s disease but the effects are very different.

    People with PCA will often first experience problems with their sight, rather than memory. This is because their brain is having trouble interpreting the information sent to it by the eyes. People may also struggle with spelling, writing or maths.

    PCA is a rare form of dementia that people often develop between the ages of 50 and 65.

    For more information and support, visit the Rare Dementia Support website.

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