Retinal health assessment is very useful. Retinal health assessment can effectively find and treat eye diseases, and the prevention and treatment effect is remarkable. Early treatment is often the right time. Once missed, the lost vision may not be well recovered. Retinal health assessment based on artificial intelligence can not only understand the health status of fundus, but also find the possible risks of chronic diseases such as cardiovascular and cerebrovascular diseases, diabetes, hypertension and anemia. Generally speaking, retinal health assessment is very useful for the prevention and treatment of eye diseases and the early detection and prevention of other chronic diseases.