Myth 1: “Diabetic retinopathy cannot be treated with fundus laser, and the more the laser is used, the worse the vision”. The purpose of fundus laser is to reduce the area of oxygen demand, reduce neovascularization, and induce regression of formed neovascularization, which means that for large non-perfused areas, laser treatment must be given early and cover enough retina to stop the growth and atrophy of neovascularization. Whole retinal laser photocoagulation is usually done in 3 to 4 sessions. Some patients’ vision loss between laser sessions is actually caused by the natural progression of the disease, not by laser. Myth 2: “If blood glucose is normal, fundus disease will not develop”. This view is one-sided. Really strict control of blood glucose and blood pressure can reduce the damage caused by diabetes to the eyes. However, a few normal blood glucose measurements do not mean that blood glucose has been strictly controlled. In reality, both type 1 and type 2 diabetics are unable to achieve really strict blood glucose control, so their condition will tend to worsen over time. Although we cannot really control blood glucose strictly, we can still slow down the development of fundoplication to a certain extent by controlling blood glucose as smoothly as possible and reducing fluctuations in blood glucose. Myth 3: “Diabetic retinopathy can be cured”. This view is also unscientific. Diabetic retinopathy is one of the complications of diabetes and, like diabetes, can only be delayed and controlled, not cured. Modern treatments such as laser, medication and surgery can delay and control the disease, but they cannot restore the lost vision.