According to the CDC WeChat official account, at the beginning of the new semester, children's book and screen time will increase significantly, and myopia prevention and control has entered a critical period. To safeguard the bright future of children and adolescents, the following points need to be noted. Outdoor activities: a natural remedy for protecting "brightness". Ensuring at least 2 hours of daytime outdoor activities is the most economical and effective way to prevent myopia. The core of "outdoor activities" lies in "outdoor activities". It is recommended to make full use of breaks between classes, physical education classes, commuting to and from school, and weekends to allow children to engage in activities under natural light, even if it is just a walk or a distant view, which can benefit them. Parents can participate together to cultivate the habit of outdoor activities. Scientific eye habits: benefit from lifelong "vision protection shield" and maintain the correct "three ones" posture. When reading and writing, keep your eyes one foot (33 centimeters) away from the book, your chest one fist (6-7 centimeters) away from the edge of the table, and your fingers one inch (3 centimeters) away from the tip of the pen. Do not read or use electronic devices while walking, eating, lying in bed, in a shaking carriage, in low light or direct sunlight. Strictly control the use of electronic products. When children use electronic products, they should follow the "three principles": first, time limit: single use for non learning purposes should be ≤ 15 minutes, and cumulative use per day should be ≤ 1 hour. The younger the age, the shorter the continuous use of electronic products. After studying for 40 minutes using electronic devices, one should take a break and relax for 10 minutes while looking into the distance. The second priority is to choose a device with a large screen and high resolution. The selection order is: projector or TV>desktop or laptop>tablet>mobile phone. The third is to control the distance: the distance for watching TV should not be less than 4 times the diagonal of the screen, the distance for using a computer should be ≥ 50 centimeters, and the distance for using a mobile phone or tablet should be ≥ 40 centimeters. Visual environment: Create a bright, comfortable, and friendly space with sufficient and even lighting. The learning environment should have good lighting, and the desk should be placed by the window. When studying at night, both the room ceiling light and the reading and writing desk lamp should be turned on at the same time to avoid strong contrast between light and dark. The desk lamp should be placed in front of the writer on the opposite side, and the average illuminance value of the desktop should not be less than 300 lux. It should be selected as a qualified product with no flicker, no glare, and certified by the national mandatory certification (i.e. CCC certification). Choose high-quality learning supplies. The height of the desk and chairs should be suitable, and reading materials with delicate paper, clear printing, and no reflection should be used. The writing paper for the workbook should not be too white. Sleep and nutrition: The "energy refueling station" for vision ensures adequate sleep. Ensure that elementary school students get 10 hours of sleep per day, middle school students get 9 hours, and high school students get 8 hours. Sleep is a critical period for the ciliary muscle and visual nerve to repair and rest. Balanced dietary nutrition. Eat more eye friendly foods, such as foods rich in vitamin A (carrots, liver), lutein/zeaxanthin (spinach, kale, corn, egg yolks), anthocyanins (blueberries, purple cabbage, purple sweet potatoes), DHA (deep-sea fish), calcium, and zinc (nuts, dairy products); Eat less eye damaging foods and strictly control the intake of sweets, sugary drinks, and fried foods. Scientific correction: Regular screening and establishment of refractive development records without believing rumors. Parents should take their children to regular medical institutions for comprehensive eye health check ups every 3-6 months based on their child's visual condition, including key indicators such as uncorrected visual acuity, corrected visual acuity, refractive power, and axial length. Establish a dynamic profile to understand the child's "farsightedness reserve" and promptly detect myopia tendencies. Scientific cognition, rejecting traps. Do not easily believe false advertising such as "curing myopia" and "reducing prescription". Once diagnosed with true myopia, scientific correction methods should be adopted under the guidance of a doctor, such as wearing appropriate frame glasses, 0.01% atropine eye drops, corneal reshaping lenses, etc., combined with good eye habits to slow down the degree deepening. For specific personalized treatment, please visit a professional medical institution. Multi party collaboration: Building a visual health defense line together. In terms of families, it is necessary to create a good eye environment and a balanced diet and nutrition; Urge children to ensure adequate sleep and develop good eye habits; Parents lead by example in reducing the use of electronic products. On the school side, it is necessary to ensure daily physical activity time on campus; Regularly adjust student seating and improve classroom lighting conditions; Reduce academic workload; Regular vision check ups and feedback. In terms of community, it is necessary to reasonably set up green land and construct activity facilities; The nighttime lighting environment of the community complies with the "Urban Lighting Building Planning Standards". (New Society)