Retinal vessels have the same embryo origin and histological structure with cerebral vessels, and are the only visible vessels accessible by simple fundus photography. Diabetes, strokes and cognitive illnesses are global health issues. ARIA provides the real-time probability of health risks before symptoms occur. ARIA can analyse the risk of stroke (ARIA-Stroke Risk), cognitive health (ARIA-eWMH) and undiagnosed diabetes (ARIA-Diabetes Risk) with a sensitivity and specificity >90%. ARIA helps encourage users to improve their lifestyle and habits, thereby reducing the risks of having disease.