Autologous fat augmentation surgery refers to extracting fat from the abdomen, thighs, buttocks and other parts of the body, and then injecting and transplanting it into the sunken eye area after purification and other treatments. The eyes are called the “windows to the soul”, so once the eyes are sunken, the impact on the appearance is more obvious, and people will look fatigued and aged as a result. In theory, autologous fat augmentation surgery is safer, but because it is an injection method, it is a test of the doctor’s skills, and there may be some risks, as follows: 1) bleeding, hematoma, and tissue bruising at the injection site; 2) unevenness of the upper or lower eyelid sockets due to incorrect levels of autologous fat injection, and bloating or nodules due to too much filling; 3) the biggest disadvantage of autologous fat filling is that the autologous fat filling can be used to fill the sunken eyes. The biggest disadvantage of autologous fat filling is that the filled autologous fat is easily absorbed and decomposed by the surrounding tissues, which in turn may lead to more sunken eye sockets. The sunken eye sockets suggest serious cellular damage to the eyes and many harmful substances such as free radicals in the tissues, so fat injection needs to be done several times to achieve the desired effect. This is because there is no standard for the absorption rate of autologous fat injected into the eye sockets, the absorption is determined by many factors and the survival of fat cannot be predicted in advance, so the survival of fat is the most important concern for patients; 4. Serious embolism complications, such as vision loss, brain infarction, and even life threatening.