The idea comes from the water, and a wavy streamline surrounds the perimeter in the shape of a runway, like a circular river guarding the people inside the city wall. And here, the eyes are like the people. Water is the source of all things, and the importance of water is irreplaceable. Just as the eyes are often tired and not often cared for, the eyes will be damaged. Protecting eyes is like protecting life. Eye fatigue can be assisted by a nursing device to promote blood circulation and return to normal.