Vampire and twilight contact lenses are non-prescription lenses that change the color of the wearer's eyes. They come in various colors inspired by movies and TV shows to transform one's look. Some lenses only cover the colored part of the eye, while scleral lenses cover both the colored and white parts to appear more dramatic. Popular lenses include golden lenses resembling the Cullen family from Twilight, red lenses for vampires who drink human blood, and green/yellow lenses for the werewolves in Twilight. These costume lenses are meant for short term wear of 6-8 hours and can last up to 12 months if properly cared for.