Plastic surgery is opening its eyes outer canthal plasty.
眼角开大整形手术也就是外眦成形术。
Osteotomies are rarely indicated above the canthal level because this area is quite narrow and has thick bone.
内眦水平以上极少做截骨，因为这部位已非常窄，而且骨也较厚。
Inner canthal liga we are pirates, these data are stolen from youdao projects on the middle of the lacrimal sac, almost equal to the level of common lacrimal canaliculus.
