An elderly patient recently called to tell me that the only remaining eye with better vision had significant vision loss, and that he could see in front of him as if he were looking through plastic sheeting, with a foggy, stringy appearance. His contralateral eye was already at the end stage of neovascular glaucoma – diabetic retinopathy – when he first came to me at the beginning of last year! Now after laser treatment of both fundus, the relatively better eye is progressing rapidly! Vitreous hemorrhage, high IOP ….. Generally speaking, for diabetic retinopathy, it is important to have early and regular checkups and to find problems in time for fundus laser treatment, and the condition can be controlled and stabilized within a period of time. Why did this patient develop so fast? I would like to use this case to talk to you about the importance of “keeping your mouth shut”! This patient, according to his family, likes to eat meat very much, and he can’t eat three meals without meat. I would like to say that if you are a diabetic, you must control your mouth, eat less meat or no meat, eat less meat, and eat more light meals. If you can not do this basic point, eyes to the end stage, it is very difficult to regain sight, mouth to enjoy a little, but the loss of light, how sad ah! I can understand the urgency of patients and their families, but… Please keep your mouth shut! As a doctor, I am responsible to tell you that it is really important