The Seeing Stick — Jane Yolen

The same story that captivated readers in 1977 is back in a stunning new edition! Hwei Min, the only daughter of the emperor of China, has been blind since birth. Her father offers a reward to anyone who can find a cure for the little girl. It seems that no one from magicians to physicians can help her. Then, one day a wise old man with a mysterious seeing stick visits the princess. Will he be able to teach Hwei Min that there is more than one way to see the world?