As people’s standard of living improves and life expectancy is delayed, people are demanding more and more quality of life. Diabetes, macular degeneration and other eye disorders that directly damage vision are drawing more and more of our attention. The improvement of medical treatment has ushered in a new dawn for difficult diseases that we used to be helpless —– intraocular injection of anti neovascular growth factor. Vision loss, especially central vision loss, can lead to a decrease in self-care ability, and the loss of vision in one eye can lead to a smaller range of vision, and can easily cause unexpected trauma without the patient’s knowledge, causing a lot of inconvenience to the family and themselves. Vision loss can also cause psychological disorders (such as depression, mania, insomnia, etc.), leading to increased family conflicts and indirectly causing and aggravating systemic disorders, such as hypertension. Intraocular injection of anti-new blood vessel growth factor can only control the growth of new blood vessels, but not cure them, just like tumor chemotherapy, which controls the growth of new blood vessels, destroys the new blood vessels and repairs the damaged normal blood vessels. Intraocular injection by a professional physician in a regular hospital is painless for the patient and focuses on preventing and controlling infection. Starting antibiotic eye drops 3 days before surgery, operating in a regular operating room, standardizing disinfection and correct operation during surgery, and continuing antibiotic eye drops to fight infection after surgery are the keys to prevent intraocular infections. If there is recent discomfort such as angina pectoris, heart attack, cerebral infarction, or transient vision loss, it is necessary to consult with a professional physician before surgery whether to proceed with treatment. Patients with diabetes, hypertension, and hyperlipidemia need to actively control blood sugar, blood pressure, and lipids. If there is redness, swelling, pain in the eyes, sudden loss of vision, or sudden increase in dark shadows, you should consult a doctor promptly. In conclusion, intraocular injection under the guidance of an experienced medical professional is safer, and the earlier the disease is detected and treated regularly, the better the prognosis for vision.