Many studies have established a strong link between myopia and education. However, the exact mechanism linking increased education with myopia is unclear.
We know that some young adults develop myopia when they start higher education. So, there does seem to be a link here. It is suggested that other external factors may influence the association between education and myopia.
Outdoor activity has long been established for its beneficial effects in reducing the risk of myopia development. Theories for its activities include the intensity of outdoor light promoting metabolism in the eye, dopamine release, and as well as the greater vergence of light.
Ideally, children should spend 2 hours or more a day outside for significant benefits. Research suggests that 2 hours every day over a week would reduce the chance of developing myopia by nearly 30%.