How can “artificial” eyelids look natural?

Often see a lot of “artificial” double eyelids look very fake and unnatural, so is it true that “artificial” double eyelids can not be fake? In fact, the secret of making natural double eyelids lies in solving the following problems. 1, the double eyelid should be wide and narrow moderately, need to be based on the face, eye type for reasonable design, wide double eyelid although very impact, but will appear unnatural. 2, deal with the inner and outer corners of the eye: the inner and outer corners of the eye that should be in place, not too long, too deep, the transition should be natural, and can not come to an abrupt end. 3.Muscle and fat on the eyelid should be removed moderately, not to form a “strip of meat”. 4, double eyelid crease can not be too deep, can not be seen when the eyes are closed, only when the eyes are opened to form a fold, to achieve such an effect needs to restore the continuity of the muscle and skin precision of the match. In a word, it is easy to do double eyelids, but to do it seamlessly, just like heaven, need plastic surgeon has rich experience, fine operation, full of patience.