Many candidates ask me online if she is a good candidate for eye opening surgery. There are two types of eye-opening surgeries, those that open the inner corner of the eye and those that open the outer corner of the eye. One of the first things we should clarify is why do we need to open the corners of the eyes and what are the benefits? Let’s start by talking about who needs an inner eye opening and what it does. The so-called inner eye opening is a surgical correction and enlargement of the inner corner of the eye in order to remove the inner canthus and lengthen the horizontal length of the eye fissure to achieve the effect of enlarging the eyes. The earliest application of eye opening is in the correction of microphthalmia, and at present, with the development of medical beauty and the increasing demand of beauty lovers, eye opening is also used for the pursuit of large eyes of the normal population. Since about 60% of Asian people have inner canthus, most of them can do double eyelid and inner eye opening at the same time. Even for those who do not have inner canthus, the inner eye opening will lengthen the effect of the eyes and increase the sense of beauty. Unlike the inner corner of the eye, the outer corner of the eye surgery opens the inner canthus to reveal the covered structure, while the outer corner of the eye opens the outer canthus to change the connection of the outer canthus to enlarge the horizontal diameter of the eye. Therefore, eye opening surgery is suitable for people who have too small eyes or whose eyes are too upturned to give a fierce impression; it can also be used in conjunction with double eyelid surgery to improve the condition of a slight drooping upper eyelid. Because each person’s eye condition is different, the way in which the lateral canthus surgery is performed is also different. Usually, the eye diameter is lengthened after the eye surgery, and the eye is reduced to a certain cosmetic effect by easing the deformity at the end of the eye and lowering the height of the end of the eye. So, exactly what types of eyes are suitable for eye opening? Eye opening is suitable for inner canthus, wide spacing between eyes, short/over-round eyes, disproportionate eyes, and upturned tail of eyes. By widening the inner canthus and lengthening the horizontal diameter of the eyes, the eye can be harmonized with the dynamic and static beauty of the eyes, making the eyes more attractive. But regardless of the inner and outer corners of the eye, the degree of enlargement is limited, can not be unlimited enlargement, must avoid the lesson of the net face.