Hyaluronic acid, also known as hyaluronic acid, is one of the constituents of the dermal tissue of the human skin, which can store water and increase the volume of the skin to make it look plump and elastic. Using hyaluronic acid to treat sunken lower eye sockets can only temporarily increase the hyaluronic acid content of the local skin. The injected hyaluronic acid will be slowly broken down by the tissues over time, and the effect of a single injection will gradually disappear in about 0.5-1 year, so it can be said that this is a one-time cosmetic surgery. Repeatedly filling the upper eyelid with hyaluronic acid over and over again will cause the skin to appear transparent, i.e., watery looking, especially when exposed to sunlight, which can make it look even more unnatural. In addition, the production process of hyaluronic acid requires a high degree of sophistication, so good hyaluronic acid is expensive, and regular injections can be financially stressful. Before eye socket augmentation, there should not be any lesions on the face, such as folliculitis, boils, acne, acute ophthalmia. If aspirin or other similar anticoagulant drugs are applied, the injection site is more likely to bruise and bleed, and it is best to stop using them for a few days before injection. Avoid touching the injection area for 6 hours after injection and do not expose the treated area to sunlight, such as sunbathing or sun exposure or being in a very cold place. Risks of the procedure include localized hematoma, unevenness, nodules, and localized skin clearing. If inadvertently injected into a blood vessel, embolization can occur, resulting in skin necrosis, loss of vision, or cerebral infarction. Eye socket augmentation surgery requires a high level of skill from the surgeon because the anatomy around the eyes is special, the structure is complex, the stakes are extremely important, and it is a delicate surgery, so it is recommended to go to a regular hospital to avoid the side effects of irregular operation.