What is hyaluronic acid blunt needle filling lacrimal groove?

Hyaluronic acid filling lacrimal groove refers to the use of biological agents of hyaluronic acid, through manual operation, the injection of the lower eyelid near the nasal side of the fossa, in order to achieve smooth lacrimal groove injection effect. Hyaluronic acid fill the lacrimal groove, it is generally recommended to use small molecules of hyaluronic acid, the form is similar to the surrounding tissue, the effect will be more natural. The filling of lacrimal groove by hyaluronic acid can be divided into blunt needle filling and sharp needle filling. The level of blunt needle filling is periosteal layer and subcutaneous layer, while the level of sharp needle filling is in the superficial part of periosteal layer. Patients can choose the appropriate filling method according to their own lacrimal groove.