Computers do great harm to eyesight, so people who often operate computers should eat more eye-catching foods, such as medlar, chrysanthemum and cassia seed. Drinking chrysanthemum tea often can also get the effect of clearing heart and improving eyesight. Lycium barbarum clearing liver and improving eyesight is also of great benefit to protecting eyesight. Drinking tea can prevent vision loss and restore vision. It is generally believed that drinking tea has anti-radiation effect and can reduce the radiation harm of X-rays to computer screens. Tea is rich in tea polyphenols (50%) and lipopolysaccharide, which can adsorb and capture radioactive substances, and then be excluded from the body by combining with them.

Lack of essential fatty acids, vitamins A, K, E and B can reduce the body's tolerance to radiation and provide them properly in the diet. Such as milk, eggs, liver, cauliflower, cabbage, eggplant, lentils, carrots, cucumbers, tomatoes, bananas, apples and so on. Scientists in China found that Chinese cabbage and radish can resist radiation. Cruciferous vegetables such as rape, green vegetables, mustard greens, Chinese cabbage and radish are not only common delicious dishes on people's tables, but also have the function of preventing radiation damage.