Will parents inherit with myopia?Experts take you to understand

September 2022 is the fifth myopic propaganda and education month. In the daily work of children's ophthalmologists, there are often two types of parents who have strong comparisons. Some parents do not care about myopia prevention and control, and some parents talk about myopia change, and even have strong anxiety about myopia. So how should I know myopia and face myopia? The reporter interviewed Deputy Chief Physician Wu Guangqiang, Child Health Department of Nanjing Maternal and Child Health Hospital.

What is myopia? The reporter learned that myopia is that the optical system of the eye is too strong to reflect the light. It cannot accurately reflect the ensemble on the retina and form a blurred image on the retina. Generally, patients with myopia are better than long vision than long vision when they wear glasses.

The risk factors of myopia are both innate and acquired. Wu Guangqiang introduced that genetic factors, especially high myopia are one of the important reasons. "Parents suffer from myopia unilaterally, and the probability of their children's myopia is 15%. Both of the parents suffer from myopia, and the probability of a child's myopia is 26%. When the parent has more than -6.00D, the child has myopia. Probability 40%-60%. "

Among the factors of the day after day, there are not healthy diet, long -term close -range learning, reading, computers, TVs, and bad eye habits and eye environment such as reading, incorrect work posture, poor eye environment, lighting, lighting Insufficient environmental lighting, insufficient outdoor activities may cause myopia.

Eye health management for children and adolescents that have not occurred in fact can be controlled by myopia. Wu Guangqiang introduced the main method to reporters:

1. Control video terminal use time

1. Infants and young children are not recommended to watch or use electronic screens.

2. Children over 2 years of age watch the screen or use less than 1 hour. The younger the younger watch the TV time.

3. When watching TV, there is a certain background light in the room.

4. The distance to watch TV needs to be above 2.5 meters, and the sight is the same as the TV midline.

5. The use of non -learning purposes should not exceed 15 minutes in order, and it should not exceed 1 hour per day.

6. After using electronic products to learn or read and write for 30-40 minutes, you should rest for 10 minutes.

2. Increase outdoor activity time

1. Outdoor activities exposed in the sun can reduce the prevalence of myopia.

2. Outdoor activity time is significantly related to the refractiveness and eye axis length.

3. Outdoor sports 2 hours a day can effectively prevent myopia, and it is better to divide into several periods.

3. The principle of "three 20" with the eyes

1. The eye time is 20 minutes with eye time

2. Watch distance 20 feet (about 6 meters) foreign objects

3. Continuous watching time for at least 20 seconds

Fourth, to read and write poses correctly (three one)

1. One inch (about 3 cm) far from the hand to the handle

2. 40 ~ 50 degree angle of pen and paper

3. Far (about 33 cm) from the eye book (about 33 cm)

4. A fist from the table (about 6-7 cm) far away

Five, good eye environment

1. Study at dusk and night to ensure that the indoor light is sufficient

2. When reading and writing homework, ensure dual light source lighting (room top lamp+table lamp)

3. The table lamp should be placed in front of the side of the writer to avoid the shadow of the hand to block the book

4. When choosing a reading book or document information for reading, the picture and text should not be too small. It should be no reflective for sub -light paper. The printing is clear and complete.

Six, sufficient sleep

1. 1-3-year-old child 11-14 hours of high-quality sleep

2. 3-6-year-old preschool children 10-13 hours of high-quality sleep

3. Primary school students sleep for 10 hours a day

4. 9 hours of junior high school students

5. 8 hours of high school students

(Source: Yangtze Evening News/Zi Niu News Correspondent Shi Yue reporter Lu Yanlin)

【Edit: Fu Sakura】

For more exciting content, please download the "Da Wuhan" client in the major application markets.

- END -