Asian eyelid surgery, also known as Double eyelid surgery, refers to the procedure that creates a fold in the upper eyelid crease to increase the space between the upper and lower eyelids. This makes the eyes appear larger and more symmetrical, in an almost almond shape. Most patients who undergo this procedure are Asian, who are generally born with thicker skin, muscle, and fat around the eyes. This condition, called monolid, is when there is no visible natural crease in the area between the eyelashes and the eyebrow.