The Mongolian fold (or epicanthic fold) is the upper eyelid skin that covers the inner corner (medial canthus) of the eye.
To "open" the covered corners of the eye, a small cut is made and resutured from inside, which serves to make the eyes more prominent. Surgery is carried out under local anesthesia and the process takes about 1/2 hour.
These three operations are generally very safe, will not affect vision, and rarely cause bleeding or inflammation. In the early period after the operation, the shape of the eyelids of the eyes may be slightly different and asymmetry, but most of them are of transitional nature and will gradually return to natural.