With the invention of camera and the discovery of optics,the development of Western visual arts entered a new era in the late 19th century.Due to the effect of these scientific achievements,the way in which Gustave Flaubert describes the change of Emma Bovary's eye ...MORE With the invention of camera and the discovery of optics,the development of Western visual arts entered a new era in the late 19th century.Due to the effect of these scientific achievements,the way in which Gustave Flaubert describes the change of Emma Bovary's eye color refl...