At first, I need to say that peripheral vision is a part of vision. In general, far peripheral vision, mid-peripheral vision and near-peripheral vision exists at the edges of the field of view, in the middle of the field of view and next to the center of gaze respectively. As we know, we get the images of a object by our imaging system. It receives the lights reflecting from the object by receptor cells and then transform them into chemical information. Finally, our brain can receive the image by translating the chemical information. Our receptor cells on the retina are assigned most at the center and lest at the edges. The two main cells, rod cells and cone cells help us to distinguish color and shape. The former is concentrated in the periphery to distinguish shape, while the latter is predominant at the center of the retina to differ color.