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 origin is very wide, either directly from the outside world, or from oneself, which in turn may transfer to the conjunctiva through the bloodstream or lymphatic fluid (tuberculosis, etc.); or from neighboring tissues, such as the eye itself (cornea, sclera), the orbit, the nasal and paranasal sinuses, the lacrimal apparatus, and the surrounding eyelid skin, which spreads directly. In terms of non-microbial etiology, mechanical, physical (thermal, radiological, electrical), chemical, and even systemic allergic states and some systemic metabolic disorders (e.g., rheumatism, gout) can be causative factors. What is the diet for conjunctival edema and corneal ulcers? 1, grains, beans, potatoes: should not use more refined white rice, refined white flour (in such flour, in order to whitening or increase the brightness, often add a benzoyl peroxide substances, will indirectly destroy carotene and lutein), it is appropriate to use more brown rice, standard flour (or whole wheat flour); corn, wheat, buckwheat, barley, etc. can also be used; mung beans and other beans or soy products can be used more. Eat more glutinous rice easy to produce phlegm and heat, so during the onset of the disease should not eat glutinous rice food. 2, vegetables: should use more cool, cold or flat varieties, such as wolfberry head, radish, celery, marjoram, cucumber, bitter melon, winter melon, melon, tomatoes, eggplant, amaranth, wild rice, rape, spinach, golden needle, lettuce, asparagus, straw mushrooms, mushrooms, cicely, groundnut, loofah, Ulva, hairy greens, bamboo shoots, etc.. Avoid leeks, scallions, garlic, etc. 3, fruits: should also be cool, cold or flat varieties are appropriate, such as pears, persimmons, persimmon cake, plums, kiwi, watermelon, figs, umeboshi, grapes, pineapple, bananas, apples, strawberries, mango, Luo Han Guo, rhizome, loquat, mulberry, sheep peach, sugar cane, orange, tangerine, grapefruit, hazelnut, cephalotax, lotus seeds, etc.. Avoid using lychee, longan, peach and cherry. During the illness, some people often use chrysanthemum or chrysanthemum brain, peppermint, cassia seeds, fresh rutabaga and other decoction or brewed tea. 4, poultry, eggs, fish: pork, pig skin, pig intestines, pig liver, lamb liver, chicken, rabbit, pigeon, duck, etc. can be eaten. River fish carp, crucian carp, loach, snapper, snail, etc. can be eaten; eggs, duck eggs, milk, etc. can also be eaten. Avoid eating mutton, dog meat, venison, beef, sparrow meat, bullwhip. Other fish and shrimp are not conducive to heat detoxification, and therefore should not be used. 5, smoking, alcohol, beverages: during the illness, smoking, alcohol, do not drink coffee, cocoa, do not eat chocolate. Drink more green tea. 6, spices: spicy and stimulating pepper, pepper, fennel, etc. are prohibited in seasonings.