Association between near work, screen time, outdoor time and
A Study was conducted to examine the association between near work, screen time including TV and outdoor time with myopia in children from the Sunflower Myopia Asian Eye Epidemiology Consortium (AEEC).

Researchers analysed AEEC cross-sectional data on risk factors (near work, screen time including TV and outdoor time) and myopia of six population-based studies. Cycloplegic refraction and axial length (AL) measurements were included. Risk factors were determined using questionnaires. Data were pooled from each study, and multivariable regression analysis was performed to evaluate the associations between risks factors and myopia, spherical equivalent (SE) and AL.

--Among the included children, 52.1% were boys, 98.1% were Chinese and 69.7% lived in urban areas. Mean±standard deviation (SD) for age was 8.8 ± 2.9 years, for SE was ?0.14 ± 1.8 D and for AL was 23.3 ± 1.1 mm.

--Myopia prevalence was 30.6%. In multivariate analysis, more reading and writing (OR = 1.17), more total near work (OR = 1.05) and less outdoor time (OR = 0.82) were associated with myopia.

--These factors were similarly associated with SE and AL, except for total near work and AL. Screen time including TV was not significantly associated with myopia, SE or AL.

Conclusively, myopia was connected with increased reading, writing and less outdoor activity. Screen time might be a near-work or outdoor surrogate influence.