Double eyelid surgery is typically done on people who don't have a prominent upper eyelid crease, such as Asians. Some people prefer a more "occidental" appearance and have surgery to form a lid crease. Double eyelid surgery is technically a form of blepharoplasty, which is a word that can be applied to many plastic surgical procedures of the eyelids. A traditional blepharoplasty involves removing excess skin and fat from the upper and lower eyelids to restore a more youthful appearance. This can be done in a way that preserves the "oriental" eyelid appearance with a low crease, or can be done to form a more western appearing crease. When seeking out a surgeon for either procedure, experience counts. You must ensure your surgeon knows these differences and can adjust his/her surgical techniques to achieve the look you are after. I've seen several Asian patients who had their eyes "westernized" by improper surgery, when all they really wanted was to correct the baggy upper lid skin.