Europeans have high eyebrows. European ancestors have a long history of hunting, and the high brow bone can better protect the eyes from impact injury. Asians have been farming for a long time, and there is no danger of hunting, so the gene of shallow brow bone has been preserved.

Europeans have deep eye features, high eyebrow arch, deep eye sockets and a three-dimensional mixture of nose and cheekbones. The inner corner of the eye has no epidermis and is relatively large. Black eyes are big, the vertical distance between eyes is large, and the orbital bone is high enough. In Europe, however, the eyebrow arch is generally prominent, the eyelid fissure is wide, the eyelid fold is parallel to the eyelid fissure, and the adhesion between the eyelid skin and the tarsal plate is tighter and bigger.

Differences between eastern and western eyebrow arches

The profile of the eyebrow arch in the east is not as prominent as that in the west, which may be due to ethnic differences. The skeletal morphological changes of eyebrow arch contour protrusion are mainly the protrusion of eyebrow arch and frontal tubercle, the downward movement of upper orbital margin and the drooping of lateral orbital margin.

The modification of frontal bone osteotomy can make the forehead lean backward, slow down the protruding eyebrow arch and frontal tubercle, and thus obtain a smooth forehead contour and a normal nose and forehead angle. In addition, the polishing and modification of the supraorbital ridge and lateral orbital margin can make the supraorbital ridge move up and down, improve the depression of the upper eyelid and make the face look younger.

In the past, in facial cosmetic rejuvenation surgery, the modification of forehead, eyebrow arch and orbital margin was not paid enough attention. It was not until 1979 that Lassus performed eyebrow arch osteotomy for cosmetic purposes for the first time, and this cosmetic surgery became popular in Europe and America, mainly because the surgeon was worried about the risk of accidental entry into the skull.

With the development of micro-instruments and the extensive development of coronary incision approach, it is not difficult to remove irregular and excessively protruding forehead, eyebrow arch and orbital margin with a micro-saw, and it is not difficult to rebuild the forehead and eyebrow arch by grinding and trimming cortical bone and cancellous bone of the external frontal bone plate, but it is still necessary to pay attention not to damage the internal frontal bone plate.

The frontal process in the brow region can be removed by osteotomy and pushed backward. Oblique lateral supraorbital angle and lateral orbital margin can also be removed, polished and reconstructed. Patients with ptosis and declination can also complete the plastic surgery of lateral canthus ligament, and can also be used as an auxiliary operation of facial rhytidectomy.

According to our treatment, the cortex of the outer plate of frontal bone is thick, so it is difficult to enter the inner plate when osteotomy or grinding. Frontorhinoplasty can not only completely improve facial contour defect and aging face, but also be quite safe and recover quickly after operation.