1. Lacrimal groove refers to a concave groove appearing on the nasal side of the lower eyelid from the inner corner of the eye, which is caused by atrophy and sagging of the soft tissue at the lower edge of the orbital septum. Some people can even reach their cheeks. Because of the contrast between the lacrimal groove depression and the surrounding skin, the lower eyelid tissue appears bloated and protruding, which is easy to be considered as pouch, but it is actually only the illusion of deepening lacrimal groove.

2, lacrimal groove is generally congenital, and people with thinner eye skin are often more obvious than the average person. But the lacrimal groove is usually not obvious when young, because young people have rich subcutaneous fat and tight skin, so there will only be a vague outline.

3. With the increase of age, the subcutaneous fat is shrinking, the skin will become thinner and drooping due to the decrease of elasticity, and the lacrimal groove on the inner side of the lower eyelid will become obvious, resulting in "bags under the eyes".

Extended data:

Lacrimal groove can be divided into three types.

1, young lacrimal groove: also known as congenital lacrimal groove, usually born with thin eye skin, often more obvious than the average person.

If the strength of muscles or ligaments is strong, it is easy to have lacrimal glands. In addition, people who have not had a good rest for a long time are in a state of fatigue, so the bags under the eyes will be prominent, and the lacrimal groove will be more obvious at this time.

2. Lacrimal groove in the elderly: With the increase of age, accompanied by skin relaxation, fat decreased significantly. But it didn't reach the level of pouch lacrimal groove.

3, pouch-type lacrimal ditch: the problem of pouch is prominent, and there will be protrusions on the side, which will affect the local ligament below, so it will form a lacrimal ditch and even deepen.

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