Fall in love with the amazing lenses that help us see So many of us wear glasses. They help us read, work and play. They are for the young and old, for bookworms and professional athletes, and are used by people in every country around the world. Learn how glasses bend light and what color blindness really means. How tears work and why we have eyelids. Learn all about the human eye, and about the extraordinary vision of cats, birds and flies. Take a tour through the long history of eyeglasses and learn about optical illusions, 3-D glasses and why pandas seem to be wearing spectacles. Packed with fun comics, puzzles and games, Extraordinary Eyeglasses will help young readers understand how wearing glasses is like having a superpower!