Conjunctival xerosis is a dryness of the conjunctiva that occurs primarily due to lesions in the conjunctival tissue itself and has a variety of causes. Under normal conditions, the lacrimal glands and conjunctival cuvettes secrete tears that keep the conjunctiva moist on a regular basis, but once these moisturizing functions are disrupted, conjunctival dryness occurs. Conjunctival dryness can be divided into epithelial conjunctival dryness and substantive conjunctival dryness. Clinically, cod liver oil drops are used, along with antibiotic solutions and ointments to prevent and treat secondary infections, corneal ulcers and corneal softening. Patients with conjunctival dryness are suitable to eat foods rich in vitamin A, foods that brighten the eyes and clear the liver, and foods rich in high quality protein. For example, the following foods are recommended to eat: 1, chicken liver Chicken liver is rich in vitamin A, maintain the role of normal growth and reproductive function, can protect the eyes, maintain normal vision, prevent eye dryness, fatigue, and prevent vision loss. 200-260 grams per day is appropriate, stir-fried and eaten. 2, tomatoes tomatoes contain lycopene has the effect of inhibiting lipid peroxidation, can prevent free radical damage, inhibit retinal macular degeneration, maintain normal vision, improve or prevent the lack of vitamin A-induced vision loss. 200-300 grams per day is appropriate. It can be consumed daily. 3, milk Milk is rich in high-quality protein and calcium and phosphorus and other mineral elements, which can promote the absorption of intestinal nutrition, promote intestinal absorption of vitamin A, enhance immunity and strengthen the ability to resist disease. 350-500 ml per day is appropriate.