Staring at a computer/tv screen ruins your eyes. That is true.
Nope thats not true. All faults to your eyes where you have to wear glasses are pure genetic faults.
It is true that staring at a computer screen can make your eyes feel tyred. But thats over when you take a break. Theire is no permanent damage because a screen can't damage your retina.
Well at least thats wat my ophthalmologist says.