Hello friend @tocho2.

You are absolutely right, many people today spend a lot of time exposed to the light rays emitted by the screens of devices such as cell phones, tablets, televisions and others, it is important that each of us keep in mind that light is energy and exposing sensitive parts of our body to them will bring its consequences, an example, our ocular system.

Many people do not see the immediate results as they think it is not true, but when they come to realize they will already be suffering from some kind of vision problems.

The important thing is to encourage people to document themselves on the subject and that each person realizes for themselves the harmful action of light at long exposures to our eyes, thank you for sharing your extraordinary point of view. Greetings.