If the line is set too high without considering the eye shape or fat is not sufficiently removed, the double eyelid line will be thick and artificial. The same symptoms appear when ptosis correction is required, and a natural double eyelid line is completed using a combination of methods such as adjusting the line height depending on the eye shape, removing fatty tissue, and ptosis correction .

If the line is fixed too weakly, the double eyelid line often loosens. In this case, the double eyelid or double eyelid may disappear and become asymmetrical. Surgery is performed depending on the type of eye, such as natural adhesion, eye correction, or incision eye surgery, and is strongly fixed to prevent it from coming loose again.

Everyone has some asymmetry depending on the size of the eyeball, skeleton, etc. Surgery must be planned accordingly, but if not, asymmetry may become noticeable after surgery. There are cases where the strength of the muscles that open both eyes are different. In these cases , asymmetry can be improved by adjusting the thickness of the double eyelids and correcting the muscles of the eyelids so that the pupils appear as symmetrical as possible through reoperation .

This may be due to an incorrect suturing process during a previous surgery or natural skin. During reoperation, the scar area is excised again to remove sternum , then the fixation depth is adjusted and muscle to muscle and skin to skin are connected to create a much cleaner line .

The amount of pupil exposure may vary if double eyelid surgery is performed without considering the force of opening the eyes, or after excessive eyelid surgery. It is possible to improve the amount of black eye exposure by performing eye correction or slit restoration according to the eye condition .