It’s all in the eye.
They say the eyes are a window in your soul – but research shows that they can also serve as an early window falling cognitive.
A study published in neurology suggests that a simple vision test can detect the alzheimer’s dajak 12 years before a diagnosis.

Researchers were required over 8,000 healthy adults – 537 of whom later developed madness – to complete a visual sensitivity test in which they had to press a button when they discovered a triangle coming out of a field of displacement points.
Those who later developed madness performed significantly worse in this “triangular test” than those who remained in good connoisseur health.
While Alzheimer is known for losing memory, scientists now believe that early signs can appear in how good we see – long before forgetting.
“Visual issues can be an early indicator of cognitive fall as the toxic amyloid plaque associated with Alzheimer’s disease can first affect the brain areas associated with vision, with parts of the brain associated with memory while the disease progresses,” the study authors writes.
“So vision tests can find deficits before they do memory tests.”
Some other visual issues that can serve as early warning signs of dementia find it difficult to distinguish between colors such as blue and green and control of eye movement.
“People with Alzheimer’s seem to have an issue by ignoring distractional stimuli, which can arise as issues of controlling eye movement,” they writes.
There is also evidence that suggests that people with dementia do not “press” face the way healthy individuals do – scanning from nose to mouth.
“People with dementia can sometimes seem lost because they do not deliberately move their eyes to scan the environment, including that of the face of people they have just met,” the study authors write.
“So this early issue in not knowing people you have just met can be linked to ineffective eye movement for new faces, rather than being a pure memory disorder.”
Previous studies show that eye movement helps improve memory, which researchers can explain why people who read the most and watch TV are less likely to develop dementia than those who do not.

Then again-they pointed out that this can be because the people who read and watch the TV are more educated and engage their brains more.
A recent study found that being bilingual can delay dementia – perhaps thanks to similar cognitive activity.
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Image Source : nypost.com