HomeLifestyleDementia warning: How good is your eyesight? The sign of Alzheimer’s in your eyes
Dementia warning: How good is your eyesight? The sign of Alzheimer’s in your eyes
Dementia is the name given to a group of symptoms linked to an ongoing decline in brain function. You could be at risk of the neurodegenerative condition if you suddenly find it difficult to differentiate between colours.
There are a number of different types of dementia, and the most common in the UK is Alzheimer’s disease.
Diagnosing the condition early could help to slow down the condition’s progress.
Making some small lifestyle changes could lower your chances of developing Alzheimer’s in later life.
You may be at risk of dementia if you struggle to distinguish between colours.
One of the key changes to Alzheimer’s patients’ eyesight is poor colour identification, it’s claimed.
Patients may increasingly find it difficult to distinguish certain colours.
In particular, they may struggle to see colours that are a shade of blue or violet.
You should speak to a doctor if your eyesight gradually starts to change for no obvious reason.
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“Certain diseases that affect the brain, including Alzheimer’s, can influence the brain’s interpretation of images being received by the eyes,” said the US healthcare practice Kadrmas Eye Care New England.
“In addition, vision problems, such as cataracts or changes in eyesight, can make it even more difficult for people with Alzheimer’s or dementia to navigate their world.
“There seems to be a connection between dementia and difficulties distinguishing between colours.
“People with Alzheimer’s disease may especially have problems recognising colours in the blue-violet range.”
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Alzheimer’s patients may also misinterpret certain objects, it added.
Their eyes see the correct object, but their brains may not accurately interpret them.
The dementia could also lead to decreased peripheral vision.
A reduced side vision increases the risk of bumping into objects, or tripping over as you walk, it warned.
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There’s no certain way to prevent dementia from developing, but there are ways to lower your risk, said the NHS.
Eating a healthy, balanced diet should help to lower your chances of developing dementia.
It’s also important to do enough exercise. Everyone should aim to do at least 150 minutes of moderate-intensity activity every week.
There are around 850,000 people in the UK with dementia, and the condition affects one in every six people over 80 years old.