What does vision mean to people? What specific work can we do to protect our eyesight and maintain eye health?

Eyes are the windows of the soul, and 70% of this knowledge acquisition channel is obtained through vision, so it is very important for this person to have a pair of bright eyes and a clear vision.

Vision is a subjective feeling obtained by the peripheral sensory organs (eyes) of the visual system receiving electromagnetic wave stimulation from the external environment in a certain frequency range and coding and analyzing the relevant parts of the center.