A few days after a four-year-old Japanese boy got over an ordinary upper respiratory infection, he told his parents that people's faces looked wrong. They took him to an eye clinic. His eyesight was fine, 1.2 in both eyes, with normal eye movements, normal pressures, normal light reflexes, and no astigmatism.
Then someone looked at his drawings. In the portraits he brought with him, the faces, ears, and hair were stretched, both vertically and horizontally, while the rest of the picture was not.