The importance of the eye is mainly reflected in its role as an organ of vision and its influence on other systems throughout the body. 1. Visual organ: The eyes can receive external light stimulation and transmit light impulses to the visual center of the brain to cause vision. About 90% of the sensory information that the human body obtains from the outside world is accomplished by the eyes, and the sharpness of vision has an important influence on life, work and study, etc. Weakness of vision will bring a burden to the individual and even to the family. 2. Relationship with other organs: clinically, we often make correct diagnosis based on the characteristics of the eyes to assist other diseases, such as vitamin A deficiency caused by corneal softening, night blindness, etc.; the first symptom of some diseases is manifested in the eyes, ignoring the eye symptoms will lead to misdiagnosis; some eye diseases lead to systemic symptoms, and it is not acceptable to deal with the systemic symptoms while ignoring the eye diseases. The eye is an important visual organ, the window to the world, and has a great impact on your appearance. Eyes are important to people and must be protected from injury. To maintain the correct posture of the eyes, to prevent overuse of the eyes, look at more green plants, insist on doing eye exercises. Seek medical attention for any eye discomfort.