The tear trough or lacrimal groove is a groove on the inner rim of the eye that is formed by the downward sloping extension of the lacrimal caruncle, which is located between the nasolabialis muscle and the orbicularis oculi muscle. How does “fat” repair the tear trough? An Abbocath catheter is inserted about 2 cm from the tear trough (on the tip of the end of the tear trough) and a fine cannula is used to inject the emulsion, which is then passed down the tear trough trace to fill the entire tear trough. Great care needs to be taken during the procedure while injecting only a very small amount of emulsion, usually in the range of 0.2-0.4 ml. After injecting this emulsion into the subcutaneous plane, it is gently smoothed out with the fingers. If necessary, the emulsion can be injected into the subcutaneous plane. Some candidates have asked: which is better, autologous fat tear trough augmentation or hyaluronic acid fillers? There are advantages and disadvantages to each. First, let’s talk about autologous fat filling of the tear trough. Advantages: Autologous fat is taken from the body, no rejection, rich source, its advantage is once the survival of lasting and effective, and fat stabilization after the effect of soft and natural, and the transplantation of the site of the skin will also improve. Disadvantages: is as a surgery, there is a certain amount of trauma and recovery period. Next, talk about hyaluronic acid filling tear trough. Advantages: hyaluronic acid filling is easy to operate, basically no recovery period, for those who do not want to surgery is a good choice. Cons: Generally only lasts about six months and requires repeated injections. The specific choice of which method to fill the tear trough, candidates can choose according to their own acceptance.