DR EyeScan is a mobile application that uses machine learning and a 3D-printed lens attachment to enable early detection of diabetic retinopathy through retinal scans. It aims to make diabetic retinopathy screening highly accessible and leave no cases undiagnosed, as retinopathy is currently the leading cause of blindness but many cases go undetected each week. The application was developed by a team combining expertise in healthcare, data science, software development, and more to help prevent vision loss through early detection and treatment of this diabetes complication.