First, it is not advisable to use your eyes at close range for too long. You should rest for 3-5 minutes every 40-50 minutes and look far away for a while to relieve visual fatigue.
Second, read and write, play computer, keep the correct posture, the height of tables and chairs should be appropriate, and the distance between eyes and reading materials should be kept at about 33 cm.
Third, mix whole grains with vegetarian food, eat more fruits and vegetables, and don't be partial to food. Lack of vitamins in food is prone to night blindness and dry eye, and lack of trace elements chromium and calcium in food is prone to myopia. In addition, it is also necessary to pay attention to regularly supplementing pleasing nutrients, not from the nutrients needed by the eyes, so as to enhance the anti-fatigue ability of the eyes and better protect their eyesight.
Fourth, when reading and writing, the light should be moderate, not too strong or too dark, and the light should come from the left front to avoid the shadow of the hand blocking the line of sight. The light should be soft, such as incandescent lamp, which should be between 25-40W. Reading in the sun is not recommended. Because the intensity of light has a direct impact on pupil dilation, too strong light will increase the intensity of eye adjustment and eye labor, which will easily lead to myopia after a long time. Generally, the desk lamp should be below 40 watts.
5. avoid reading while walking, or reading in the walking carriage. Because the carriage is shaking, the body is shaking, the distance between the eyes and the book can not be fixed, and the burden of glasses will increase. If you do this often, you are likely to be nearsighted.
Six, actively participate in physical exercise, enhance physical fitness. When the eyeball follows the target movement, the continuous relaxation and contraction of ciliary muscles and the synergistic effect of extraocular muscles can improve the blood perfusion of the eyes, promote the metabolism of the eyes, and thus reduce eye fatigue. Moreover, physical fitness is closely related to the occurrence of myopia in children. Children with malnutrition and weak constitution are prone to myopia.
Seven, insist on doing correct eye exercises. Massage the acupoints around the eyes, enhance the blood circulation in the orbit, improve the nerve nutrition, eliminate the hyperemia of the eyes, and achieve the purpose of relieving eye fatigue, which is beneficial to the prevention and treatment of juvenile pseudomyopia, and is a good method for self-care of teenagers' eyes.
Eight, eat less candy and high-sugar food. Too much sugar will produce a large number of acidic substances in the blood, and the combination of acid and salt in the body, especially calcium, will reduce the blood calcium, affect the toughness of the eye wall, make the eye axis easy to elongate, and promote the occurrence and development of myopia.