A double eyelid is an upper eyelid where a skin fold forms when the eye is open. This happens because the muscle which helps us elevate the upper eyelid gives off fibrous attachments to the skin where a crease is formed, thus simultaneously opening the eye whilst forming the double eyelid. In Asians, this crease is usually lower or even absent, correspondingly leading to a lower or absent fold. Whilst lower folds can suit some Asian faces well, quite often a low or absent fold gives the eyes a tired or dull look.