Recently I saw such a surprising old news, a 23-year-old girl even a shot of hyaluronic acid down the eyes blind. I used to write a lot of articles about the safety, convenience and speed of microplastic surgery, but I neglected the important point that microplastic surgery should be done by regular institutions! Today I’m going to explain why hyaluronic acid injections can also have such serious complications as blindness. What is the cause of blindness due to hyaluronic acid injection? Blindness! It is one of the most serious complications of hyaluronic acid injection and must always be alerted. We generally believe that the blindness caused by hyaluronic acid injection is mainly due to the injection of hyaluronic acid into the periorbital vessels, which causes embolism of the retinal artery and leads to the obstruction of blood supply to the eye. The next is the orbital apical syndrome caused by injection stimulation (when trauma, inflammation or tumor injures the optic foramen or supraorbital fissure, skin sensory impairment, ptosis, vision loss, or even blindness occurs). But in either case, what we have to do is to be sent to a regular hospital for resuscitation within 90 minutes! Tip: Hyaluronic acid can not only have the role of hydration, through hyaluronic acid injection can also be augmented nose, chin, treatment of forehead depression and so on. But the problem of hyaluronic acid is also obvious, because it needs to be injected repeatedly.