How many people in the UK are living with sight loss and dementia?

Sight loss affects an estimated 250,000 people with dementia in the UK and may be caused by:

  • an eye condition, such as cataracts
  • another health condition, such as stroke
  • normal ageing of the eye
  • the dementia itself.

If you have dementia, you may have visual difficulties (specifically problems with perception) but still have healthy eyes. These problems are caused by the effect of dementia on the brain. Dementia conditions which may have an impact on vision are: Lewy body dementia, posterior cortical atrophy, Alzheimer’s disease and vascular dementia.

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