Some people think that because diabetic retinopathy is controlled after laser treatment, they can rest easy in the future. This view is wrong. First, there are limitations to laser treatment. Although laser is effective for most patients, there are still a very small number of patients who lose their vision after laser treatment. Second, there are many risk factors associated with the progression of diabetic retinopathy, including disease duration, blood glucose, lipids, and blood pressure levels. Whether these factors can be effectively controlled will also affect the regression of diabetic retinopathy. Research data show that intensive control of blood glucose can reduce the risk of diabetic retinopathy by 75% and the risk of diabetic retinopathy progression by 50%; strict control of blood pressure can not only reduce the risk of diabetic retinopathy progression by 34%, but also reduce diabetic mortality. Controlling these risk factors is beneficial to control the disease and reduce the risk of further progression of retinopathy on the one hand, and to promote the recovery of vision after laser treatment on the other hand. In addition, regular fundus examinations should be performed after laser treatment according to medical advice in order to detect new lesions and provide timely and appropriate treatment. It is recommended that patients have their fundus checked at least once a year or have a fundoscopic screening.