How Is Lacrimal Groove Filled

There are two main filling methods for lacrimal groove: the first is point-like injection through sharp needles. The level of injection is mainly in the periosteum, that is, with sharp needle injection, the safer level. Injection into the periosteum surface, where there are fewer blood vessels, is less likely to cause problems, and can also be done subcutaneously with a small amount of supplement. In the second type, a relatively long blunt needle (about 5cm) is used for injection. When the blunt needle is injected into the lacrimal groove, the layers are mainly in the subcutaneous and periosteum. The difference between blunt needle injection on the periosteum and sharp needle injection on the periosteum is that the level of blunt needle injection on the periosteum is relatively shallower than sharp needle injection, that is, blunt needle injection is not as deep, but blunt needle can be evaluated with relatively better results. But blunt needles are more painful to inject because they take a longer route and must be opened with a sharp needle before entering the skin.

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