It is suggested to use epicanthus incision, also known as epicanthus incision, to remove the epicanthus of inner/outer canthus. Generally used for eyes with small fissure and epicanthus, it is also called canthoplasty, that is, canthoplasty. This redundant upper eyelid tissue can be removed by fine cosmetic surgery, and there will be no residue in canthotomy. Use the method of opening the inner canthus, that is, opening the corner of the eye. Opening the corner of the eye is a delicate plastic surgery. If the operation is improper, it will easily lead to the failure of opening the corner of the eye, which will not only fail to increase the eye effect, but may also cause harm to the eyes. Once the plastic surgery of opening the corner of the eye fails, it is necessary to carry out repair treatment as soon as possible, reshape the shape of the eye, eliminate the traces left by the previous opening of the corner of the eye, and achieve the same effect as before and after opening the inner corner of the eye.