Given modern lifestyles, people - regardless of age - spend more and more hours every day in front of a screen, be it a computer or a smartphone.
As a result, the risk of experiencing vision problems increases dramatically.
The 20-second rule
According to experts, one way to protect one's eyes is to look at an object about six metres away for 20 seconds every 20 minutes.
Thus, by applying the rule of 20 seconds the eye gets enough rest and is not stressed by the screen.
Source: in.gr
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