retina

The ‘Powerhouse of The Cell’ Could Be Secretly Helping Mammal Eyes Process Light

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For you to read this article, the eyes have to perform quite the task – light enters the cornea and travels through the pupil and lens to the retina at the back, where light-sensitive cells such as cones and rods then pass things on to the brain via electrical signals in the optic nerve.   … Read more

A Key Detail in Your Retina Could Indicate How Healthy Your Brain Is

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Alzheimer’s is an insidious brain disease marked by a slow mental decline that can develop unnoticed for decades before symptoms arise, but hidden signs of the condition might exist much sooner.   New research suggests that the thinning of a person’s retina – the light-sensitive tissue that lines the back of the eye – in … Read more

A Hidden Pattern in Your Retina May Reveal if You’re at Risk of a Future Heart Attack

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Early, accurate, and simple diagnosis is important in just about every health condition you could name, and that includes heart disease. New research now suggests straightforward eye scans could identify patients with an increased risk of cardiovascular problems later on in life.   If this method of diagnosis can be developed, it would be a … Read more

Elephants: Trunk may be one of most sensitive body parts of any animal

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The bundle of nerves that controls the elephant’s trunk contains 400,000 neurons – a lot more than we expected – suggesting the trunk is incredibly sensitive Life 20 January 2022 By Jason Arunn Murugesu An Asian elephant (Elephas maximus) Gerry Ellis/Minden Pictures/Alamy Elephant trunks may be one of the most sensitive body parts in the … Read more

Something in Your Eyes May Reveal if You’re at Risk of Early Death, Study Shows

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A quick and pain-free scan of the human eyeball could one day help doctors identify ‘fast agers’, who are at greater risk of early mortality. Getting older obviously has an impact on everybody’s body, but just because two people have the same number of years under their belt doesn’t mean they are physically declining at … Read more

Cataracts and dementia: People who undergo eye surgery have lower risk of brain condition

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People who have cataracts can reduce their risk of developing dementia by about 30 per cent by undergoing surgery to restore their sight, although it’s not clear why Health 6 December 2021 By Clare Wilson Laser surgery for the treatment of cataracts IMANE/SCIENCE PHOTO LIBRARY Older people who have cataract surgery to improve their eyesight … Read more