retinal

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

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

There’s a Cancer Treatment That Gives People ‘Night Vision’. Here’s How

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Among all the different types of cancer treatment, photodynamic therapy – where light is used to destroy malignant cells – might have one of the strangest side effects: Patients are often better able to see in the dark.   Last year, researchers finally figured out why this happens: Rhodopsin, a light-sensitive protein in the retinas in our eyes, interacts with … Read more