The etiology of conjunctival edema is divided into two categories: microbial and non-microbial. In terms of microbiology, bacteria, viruses, parasites, etc. can cause conjunctival inflammation, and the source is very wide, either directly from the outside world or from itself, and its own infection may be transferred to the conjunctiva through the bloodstream or lymphatic fluid (tuberculosis, etc.); to prevent keratitis, it is advisable to eat a diet rich in vitamins and fiber vegetables and fruits. Eat more beans, soy products, lean meat, eggs and other high-calorie, high-protein foods to facilitate corneal repair. You should quit smoking and drinking, and do not eat fried, spicy, fatty and sugary foods. Preventing keratitis by eating more foods containing vitamin A is also good for the eyes. What should I pay attention to in my daily diet for conjunctival edema and corneal ulcers? Eat more foods with vitamin C. Vitamin C is one of the components that make up the crystalloid of the eye. If you are deficient in vitamin C, you will be prone to cataract disease, which is a clouding of the crystal body. The actual fact is that you can find a variety of fresh vegetables and fruits that are rich in vitamin C. What are the best things to eat when you have keratitis, especially peppers, cucumbers, cauliflower, cabbage, dates, pears, oranges, etc. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. What foods are good for keratitis? Foods containing vitamin A are also good for the eyes. When keratitis is deficient in vitamin A, the eyes are less able to adapt to the dark environment and in severe cases are prone to night blindness. What is good to eat when you have keratoconus? Adequate daily intake of vitamin A can also prevent and treat dry eye disease. The best sources of vitamin A are the liver of various animals, while plant foods such as carrots, amaranth, spinach, leeks, green peppers, red-hearted white potatoes, and oranges, apricots, and persimmons among fruits.