The eyes are the first of the five senses, the most important, delicate and perfect sensory organs of the human body, the main visual function, is an extension of the brain, usually about 90% of human information from the outside world from the eyes. Vision in the human understanding of the objective world occupies an extremely important position, so the eyes have “brain of the skylight” called. A person’s eyes, especially the subtle changes in the eyes, is often the expression of a variety of feelings and reflect the inner and outer beauty of the human window, so the eyes have the “window to the soul” reputation. “The eyes speak better than the tongue” (Japanese proverb), “toast me with your eyes only” (the great musician Mozart’s poem), “the eyes can speak for her mouth the most difficult feelings and emotions “The language of praising the eyes in ancient novels and modern music in China is endless. The eyes are not only an important visual organ, but also the center of the appearance, the focus and main symbol of beauty. People’s examination of appearance begins with the eyes. A pair of clear and bright, attractive eyes can not only add to the beauty of the appearance to make it more charming and elegant, but also can cover up or disguise the shortcomings and defects of other organs of the face. The idiom of “painting the dragon to dot the eyes” reflects the aesthetic significance and importance of the physiological function of the eyes. The shape and structural proportions of the eyes have an important impact on the beauty of the human face, which is why aestheticians call the human eyes the “window of beauty”. The human eyes include the eyeballs and their appendages, and their local morphological features and harmonious relationship with each other form the basis of the beauty of the eyes. The eyes are located under the eyebrows and on both sides of the nose. The inner canthus is located directly below the eyebrows, and the distance between the two eyebrows is similar to the distance between the inner canthus of the eyes in most people. The eyes are located in the middle of the face, with bilateral position morphology, size, and symmetry. Its position should be consistent with the frontal face parts such as face, eyebrows, nose, ears, etc. The ancients regarded “three stops and five eyes” as beautiful. “Three stops” is the length of the face in three equal parts, both eyes should be located in the stop above. “Five eyes” is the width of the face in the eye level line can be divided into five equal eye widths. The width of the lid fissure, the distance between the inner canthus, and the distance from the outer canthus to the ear should be approximately equal. The width of the lid fissure is equal to the width of the nose.