How Does Lacrimal Groove Use Blunt Needle To Fill

Lacrimal groove filling methods mainly have two kinds: the first, through sharp needle punctate injection. The level of injection is mainly in the periosteal surface, that is, when using sharp needle injection, relatively safe level. Injection on the periosteal surface, less blood vessels, less chance of problems, but also a small amount of subcutaneous supplementation. Second, use a long, about 5cm blunt needle for injection, blunt needle injection in the lacrimal groove, the layer is mainly in the subcutaneous and periosteum. The difference between a blunt injection on the periosteum and a sharp injection on the periosteum is that the level of the periosteum is relatively shallower with a blunt injection than with a sharp injection, meaning that the blunt injection does not go as deep, but the blunt injection is relatively better for evaluation. But BLUNT NEEDLES ARE MORE PAINFUL TO INJECT BECAUSE THEY HAVE TO TRAVEL a LONGER ROUTE, AND BLUNT NEEDLES HAVE TO USE SHARP NEEDLES TO OPEN THE skin TO GET INSIDE.

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