Packaging Design Zhenshiming Eye Mask by Yang Bo This is a product of eye mask. The capital letter E is a common form of Chinese visual acuity chart, and consumers are familiar with it. The letter E is transformed into a smiling face, and the shape of English word "eye" is outlined with a stroke. The two products form a complete visual work and exist separately. A complete visual chart is showed on the side after the box is opened, which is familiar to consumers and could be used to test vision simply. This makes the products more interesting.