Psychological disorders are the new "scourge" of the era.
Nowadays, dependence on electronic aids is becoming the norm or even more - a necessity. It is difficult to surprise with the ability to find the necessary information or service, more is required, and as a result, large volumes of information pass through your conscious and unconscious "information filters" and if the consciousness is still able to resist, then the subconscious is the most vulnerable part. Fortunately or unfortunately, learning or any new knowledge increases the amount of information that can be processed without causing harm. The ability of people to control the flow of information, filtering out the false part of it, alternating with physical activity and rest, is a key skill developed by very few people.
Don't be so sure about the vision. This is no problem yet. From sitting at a laptop and a phone (as well as from constantly reading books), the eyes get used to "work" at a distance less than an arm's length. Exercises for the eyes are needed so that the muscles responsible for "focusing" do not atrophy. For example, you need to consistently try to read small text at arm's length and at a distance of several meters.
I'm certainly not an expert in this, but I'll share my opinion. After a long sitting at a laptop, a computer, my head starts to ache, my ears sometimes ring .. And often after that bad dreams come off (exactly when I sit at the computer for a long time). In my opinion, this is not a healthy reaction of the body. I think that technology affects us, our entire body, especially its upper part (brain). I myself study to be a programmer, all day at the computer, but I try to do exercises every half an hour, go out (I always walk before school, work) ..