Double Eyelids
Overview
One distinctive feature of the eye that varies from person to person is the number of creases on the eyelid. Double eyelids are those with a visible out fold crease. This is in contrast to single eyelids, or monolids, which have no crease. Genetics determine whether you have double eyelids or not. Surgery to form double eyelids is available. It may be done for cosmetic reasons or because an eyelid that doesn't have a crease is interfering with your vision.