To determine true myopia or false myopia, a dilated eye test is needed. The purpose of dilating the pupils is to relieve eye fatigue and relax the muscles that are straining to regulate, so that the refractive error will be accurate. Generally for children under 14 years of age, 1% atropine eye ointment, once a day in the morning and evening, the appropriate amount of coating both eyes, used for five days, the sixth day without pointing the eyes, the seventh day to the hospital to check the shadow of the optometry. If the pupil dilated naked eye vision can reach 1.0, that is “pseudomyopia”, in the short term can be cured, such as drugs, acupuncture, buried ear acupuncture and physical therapy equipment, can make the tense muscle relaxation, fatigue relief, visual acuity back to normal. If you don’t want to be treated, just let your eyes look into the distance and pay attention to rest, your vision may also be restored. If the naked eye visual acuity does not reach 1.0 after dilating the pupils, true myopia should be considered. True myopia should be in the regular hospital dilated optometry glasses, without dilated glasses or random purchase of glasses is not suitable. Do not correct your eyesight to 1.2 or 1.5, but 1.0, otherwise it is easy to increase your myopia. After dispensing glasses, you should also pay attention to the following aspects: Preventive measures: children must be cultivated from childhood with good hygiene habits. 1, cultivate their correct reading and writing posture, do not lie on the table or twisted body. Books and eyes should be kept at one city foot. School desks and chairs should be suitable for students’ stature. 2, reading and writing time should not be too long, lasting 1 ~ 1.5 hours after a short break eyes to the distance, do eye exercises. (Nowadays, hand-held devices and computer use distance and reading and writing is almost the same, so also pay attention to the use of time). 3, writing and reading to have appropriate light, light from the left side of the best over. Do not read or write in too dark or too bright light, reduce the burden on students, to ensure that the 10-minute break between classes to reduce visual fatigue. 4.Actively carry out physical exercise to ensure that students have one hour of physical activity every day. 5.Teach students to write, not too small, not too dense, not to write oblique, cursive characters. Writing time should not be too long. 6, seriously do eye exercises. 7, watching TV should pay attention to the height should be level with the line of sight; eye and fluorescent screen distance should not be less than 5 times the length of the diagonal of the fluorescent screen; watching TV indoor should be open a small branch light lamps, which is conducive to the protection of eyesight; in the continuing to watch TV 1 ~ 1.5 hours after a short break to the eyes to the distance, do eye exercises. 8, should eat more food rich in vitamin A various vegetables and animal liver, egg yolk and so on. Carrot contains vitamin B, good for the eyes; eat more animal liver can treat night blindness. Myopia patients are generally deficient in chromium and zinc, myopia patients should eat more food containing more zinc. Foods such as soybeans, almonds, nori, kelp, mutton, yellow fish, milk powder, tea, meat, beef, liver, etc. contain more zinc and chromium, can be increased in moderation. Zinc supplementation is best to take zinc protein, such as the new rare treasure tablets. To myopia should be graded prevention and treatment, catch early and catch small. Actively correct and prevent the depth of development. If myopia has occurred, go to the hospital for optometry and wear appropriate glasses. Pseudomyopia can be corrected by far fog vision method, push and hold manipulation or crystal manipulation, as well as physical therapy, drugs and so on. 9, playing badminton, table tennis can prevent myopia in the process of playing the eyes must quickly follow the badminton and table tennis such as the flexibility of the “small ball movement” trajectory changes, which is 5 to 9 years old children’s eye function improvement has unexpected benefits. In general, most of the early stages of myopia in adolescents belong to “pseudomyopia”. A kind of functional myopia caused by over-exertion of the eyes and tense regulation. If not timely spasmodic correction over time will develop into real myopia. Commonly seen in young students in a long time when looking at near objects, due to the use of the degree of regulation is too strong and lasts too long, resulting in persistent contraction of the ciliary muscle, caused by the regulation of tension or apoplexy spasm, and thus after a long time reading and writing to look away, can not quickly relax the regulation, which causes dizziness, eye swelling, vision loss and other symptoms of visual fatigue. This kind of myopia is called pseudomyopia because the refractive power of the eye is increased, which puts the eyeball in myopia state. Both pseudomyopia and true myopia are characterized by visual fatigue, poor distance vision and good near vision. However, pseudomyopia belongs to the functional changes, there is no eyeball anterior and posterior diameter lengthening problem, but only the spasm of regulation, after the ciliary muscle paralysis drug eye (dilated pupil), most of them can be converted to farsightedness or orthoptic eyes. If you wear myopic lenses according to the treatment of true myopia, your eyes will feel very uncomfortable, because it does not release the spasm of regulation, and there is even a risk of myopia development.