If you want to turn double eyelids into single eyelids, maybe you can change them. Whether double eyelids can be made into single eyelids, we must first understand the formation principle of double eyelids. The reason for the formation of double eyelids is that the dermis at the double eyelid line is attached to the levator aponeurosis. When you open your eyes, the aponeurosis is lifted and the fixed dermis is pulled up to form a state of double eyelids.