With the popularity of electronic devices, many parents struggle with whether their children can use computers. The American Academy of Ophthalmology released data in 2009 showing that over the past 30 years, the myopia rate among children in the United States has increased from 25% to 41.6%, an increase of 66%. Among children with 12 or more years of education, the prevalence of myopia is as high as 59.8%. Beijing Children’s Hospital Ophthalmology Yu Jifeng Advantages of children using computers or cell phones: Preschoolers using computers can increase their reading comprehension skills and can adapt to schooling and learning more quickly. In a study involving 122 preschoolers, each child was allowed four computer sessions per day, each lasting 15-20 minutes. 6 months later, it was found that children who used computers had significantly better learning and perceptual skills than those who did not. Children who used the computer both at school and at home outperformed children who used the computer only at school. Disadvantages of computer or cell phone use in children: prolonged computer use can lead to dry eyes, myopia, and video terminal syndrome. Dry eyes, prolonged gazing at the computer screen, and flickering light irritation on the screen may be the cause of vision loss. American Academy of Ophthalmology guidelines for children’s computer use: Establish good usage practices, including proper sitting posture; keep the computer 15° below eye level; get off the computer every 20-30 minutes, stand up and move your body, and let your eyes rest for at least half a minute; keep the computer screen 18-28 inches (45-70 cm) from your eyes; and adjust room lighting to match the computer screen’s stimulating light.