At eight o'clock, Dr. Yang Xiaonan replied: Flat fan-shaped double eyelid is the name of a form of double eyelid that we often choose in clinic. I'll share it with you here. Then the so-called flat fan shape means that at the inner corner of the eye, the contour curve of this double eyelid will be closer to the corner of the eye, while at the middle and outer side, it will naturally and smoothly continue outward along the arc of the eyelid edge, and the position of the peripheral corner of the eye will be moderately widened. This is what we call a flat fan in clinic, and it is also a double eyelid arc that many oriental beauty seekers are willing to choose at present. During the operation, if your inner canthus has some redundant skin shapes, we often need to open the inner canthus to reveal the shape of double eyelids, and at the same time, it should not be too obvious, close to the corner of the eye. For the medial and lateral part, when designing the surgical incision, we should pay attention to the antegrade degree of eyelid margin and the moderate upward movement of periphery and lateral canthus in order to obtain the ideal flat fan-shaped double eyelid.