Cheap eye scan could reveal Alzheimer's early

This study is testing a new, low-cost eye scanner to see if it can take clear pictures of the retina, the light-sensitive layer at the back of the eye. Researchers will compare images from this device with those from a standard, expensive scanner. They will also measure the thickness of retinal layers, which may change in people with Alzheimer's disease. The goal is to develop an affordable tool that could help detect Alzheimer's earlier by looking at the eye.