RESUMO
AIM: To analyze the electronic product use time, writing time, playing piano time and outdoor activity time and the distribution of myopia in 586 cases of school age children in our hospital. ·METHODS: A retrospective analysis of 586 cases of children aged 6 to 12 years old in the outpatient department was established. Personalized files were used to record the uncorrected visual acuity, optometry, slit lamp, fundus mirror and strabismus. The cumulative use time of electronic products ( including computer, mobile phone, iPad) , writing time, whether to play the piano and outdoor activities time with the eye situation were recorded. Statistical analysis of the age group of myopia, the cumulative use of electronic age in different age groups, writing time, whether playing piano and outdoor activities and the distribution of myopia occurred. · RESULTS: ( 1 ) With the increasing of age, the distribution of uncorrected eyesight was in children mostly mild myopia, and the proportion of mild myopia was significantly higher than that of moderate and high myopia. ( 2 ) Electronic products use time distribution:the proportion of playing electronic products ( including mobilephone, computers, iPad) accounted for 76. 8%, of which 9 years old, 10 years old the cumulative use of electronic products with a long time was higher than other age groups. ( 3 ) Distribution of writing time: the proportion of write homework ≤1h was significantly lower than the proportion of writing homework > 1h (37. 2% vs 62. 8%), of which 9 and 10 years old children cumulative write time was higher than other age group. ( 4 ) Distribution of playing the piano: the proportion of playing piano time less than 1h was significantly higher than the proportion of playing piano time more than 1h ( 89. 1% vs 10. 9%). ( 5 ) Distribution of outdoor activities: the proportion of outdoor activities ≤1h in children at school age was significantly higher than that of outdoor activities > 1h (91. 8% vs 8. 9%). ·CONCLUSION: With the age exposure to electronic products becoming younger, heavy learning tasks and less outdoor activities, myopia occurred in advance of age. So health examination and eye guidance, reducing the amount of work appropriately, increasing outdoor activities will slow the development of early childhood myopia.