Vitamins should be vitamins A, B 1, B2, D, C and E, because these vitamins can improve the nutrition and metabolism of retina, optic nerve and other tissues in the eye, and also have a certain effect on strengthening the toughness of sclera and the muscle strength of ciliary muscle. Vitamins cannot be synthesized in the body and must rely on food supply. Animal liver, milk, eggs, cod liver oil and other vitamins are high in content, and fresh fruits contain

Protein, as far as sclera tissue is concerned, can be the tough shell of eyeball. Although the sclera has some toughness, such as poor resistance, it is affected by external forces. Will be forced to stretch, so that the eyeball gradually becomes longer. Such as fish, meat, milk and eggs, are rich in protein.

Calcium and phosphorus can enhance development and prevent myopia. Food, such as cattle bones, pig bones and other animal bones, is rich in calcium, which is absorbed and utilized most by the human body. Other products, such as milk, beans, clams, crabs, shrimps, eggs, shepherd's purse, rapeseed, peanuts, jujube and so on. , also has a high calcium content; However, milk, eggs, fish, meat, vegetables, coarse grains, seaweed, beans, walnuts, pumpkin seeds and other foods contain more phosphorus.

Zinc and chromium, zinc and chromium are also essential trace elements for human body, especially zinc has a greater effect on intraocular tissues. Myopia patients generally lack zinc and chromium, such as soybeans, oatmeal, almonds, seaweed, kelp, mutton, steak, yellow croaker, dragonflies, oysters, milk powder, cocoa powder, tea and so on. Yeast, beef, cereal, meat, liver and cheese contain more chromium.