According to comprehensive study results published in the British Journal of Ophthalmology, there is a link between increased screen time and the risk of children developing myopia (nearsightedness).
The comprehensive study evaluated results from over 45 studies involving .3 million subjects. Researchers found that the myopia risk increased from 1 to 4 hours of screen time and was even more significant when exposure to multiple devices was involved.
All age groups, 2 to 7, 8 to 18 and 19 and older, were affected by the increased risk and the odds of developing nearsightedness increased if the daily screen time exceeded an hour but decreased if screen time exceeded four hours per day.
It is unclear what the best way to reduce the risk of myopia as researchers point out that simply reducing screen time may not be very effective. Other factors come into play including genetics, lifestyle, and environment. Increasing time spent outdoors may be helpful and people are encouraged to consult with their eye care provider regarding the best therapies to help reduce risk of developing myopia.
