Dry eye is one of the most common eye diseases. At present, the methods of treating dry eye include artificial tear drops, wearing hydrophilic soft corneal contact lenses, blocking the tear dots with small plugs such as silicone plugs, closing the tear dots with surgery, using drugs to stimulate tear secretion, etc. However, they are mostly stopgap methods, which do not help the fundamental improvement of dry eye and have various disadvantages and inconveniences. Chinese medicine calls dry eye syndrome “white astringent syndrome”. The “Spiritual Pivot – Five Infirmity Fluids” cloud: “The fluids of the five viscera and six internal organs, all seep up to the eyes.” The five viscera are in harmony and have a source of transformation, and the fluids in the eyes are transformed into divine water, moistening the eye pearls and nourishing the eyes. Yin and blood deficiency, the lack of fluid deficiency, the source of tear biochemical deficiency, tear production is reduced, the eyes lose tears moistened and dry, resulting in the occurrence of dry eye disease. Modern pharmacological research proves that most herbal medicines for nourishing Yin and essence can enhance the vitality of aging-related enzymes in the blood and significantly reduce the content of lipid peroxide, thus delaying the aging of various organs in the body, facilitating the production and normal distribution of tears, restoring the normal tear film structure and function and maintaining the normal environment of the eye surface. With the method of nourishing Yin and moistening dryness, patients with dry eyes can be treated with Chinese herbal medicine Nourishing Yin and moistening eye pills to achieve better results.