Diabetes is a disease that damages many organs throughout the body. For ophthalmology it is also an eye disease that severely impairs visual function, and we call it diabetic retinopathy, (referred to as glycoplasty) which is characterized by the development of retinal neovascularization, which induces vitreoretinal proliferative lesions and eventually leads to retinal detachment. In addition, diabetic macular degeneration and diabetic optic neuropathy can occur. For the prevention of this disease, in addition to the most important: control of blood sugar. The most important measure for the prevention of ocular pathologies is for diabetic patients to regularly check the fundus, for those with suspected lesions, if necessary, also need to perform fundus fluorescence angiography, for patients with neovascularization, no perfusion area should be used in a timely manner to perform fundus laser photocoagulation therapy, so as to avoid the progression of the disease and have to perform vitrectomy. Once this point is reached, the surgery is difficult and the prognosis is far worse than that after timely laser treatment. In clinical practice, we often see many patients who do not have to undergo vitrectomy because they missed the opportunity to undergo laser treatment, which is very regrettable! In many European and American countries, especially in Germany, most diabetic patients receive regular fundus examinations due to the good health promotion work, and once their condition requires, they are treated with laser in time, so there are few patients who really develop a very serious glucose network. So here is also an appeal to the physicians of the endocrinology department to actively educate diabetic patients on this aspect of health to avoid similar tragedies! Here’s a heartfelt thanks to you!