1, doctors should be experienced: only surgeons should be familiar with eyelid anatomy, have a solid plastic foundation and good aesthetic ability. Because the surgical incision is too large, it is easy to form a scar due to the difficulty of healing, or the angle is not good, and the incision cannot be well hidden, so the requirements for doctors are very high.

2, the level of surgery should be clear: the operation of opening the corner of the eye seems simple, but because the local structure of the eye is complex, only by grasping the surgical steps and clarifying the level of surgery, the fine structures such as lacrimal canaliculus will not be destroyed in the operation of opening the corner of the eye, and some unnecessary consequences will be avoided.

3, the effect should be harmonious, perfect and natural: in addition to requiring doctors to have superb technology, doctors should also have aesthetic feeling. Doctors should fully weigh the influence between double eyelids and canthus, and consider that the overall effect of eyes is more harmonious, perfect and natural.