SCENE + HEARD: Daily Post An Eye Test Could Provide Early Warning of Alzheimer's Disease, Study Says By Staff Tuesday, May 21, 2019 4:32 PM In the future, a doctor might be able to tell whether someone is heading toward Alzheimer's disease—not by carrying out expensive brain scans, but during an eye exam. A new study paper in the journal Ophthalmology Retina outlines research that took place at Duke Eye Center in Durham, N.C. The researchers propose that a loss in density of blood vessels in the retina could suggest development of Alzheimer's disease. Researchers studied more than 200 people with normal brain function as well as individuals with Alzheimer's. They used a technique called optical coherence tomography angiography (OCTA), which is noninvasive and can reveal blood flow in every layer of the retina. In the control group, they found that the web of tiny blood vessels located at the back of the eye was quite dense. The vessels of those with Alzheimer's disease, however, were less dense. Click here to read the full story from MedicalNewsToday.