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NEW YORK (Reuters Health) – "Major" differences in the retina of Alzheimer's disease patients can be identified, opening the way for a future in which the disease can be diagnosed by a simple eye exam before the onset of the main symptoms, according to a new study published in the journal Retina.
Duke University's research on nonsurgical imaging, called OCTA, allows physicians to quickly examine blood flow in the small capillaries located at the back of the retina.
"We measure blood vessels that can not be seen during a normal eye examination, and we do this using a relatively new and extensive technique that takes high resolution images of very small retinal blood vessels." in just minutes, "said Sharon.
"These changes in the density of the retinal blood vessels are likely to reflect what is happening in the tiny blood vessels of the brain, perhaps before we can detect changes in perception."
The study was conducted on more than 200 people, photographed with OCTA. It was found that 39 people had Alzheimer's disease and 37 had mild cognitive impairment (MCI).
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