I don't even know these days. I need a computer for work so there is that, at home I spend some time online and I have the confort of having a laptop and a seven inch tablet. I also just got an S3 phone on which I can abuse my limited data plan.... so... 24/7?
The last couple of days, I've tried to limit how much I use the laptop because I'm starting to feel like it's beginning to take a toll on my eyes...finally. Wait til my dad hears of this
At least you don't have your eyelids trembling. I had it years ago and i had to start to take breaks.
But still better than having an aching wrist.