The coronavirus pandemic required many to stay home and/or work from home. Naturally, this required more screen time. Entertainment at home also often resulted in more screen time. Collectively, these often resulted in our eyes being exposed to harmful blue rays emitted from these devices.
It is necessary for us to carefully manage our screen time. Take periodic breaks. Look at distant objects far away. Close your eyes occasionally. Use eye lubricants when dryness is experienced, etc. This is very important because you may not realise the effect till your vision is affected, which may be too late. Take care!