Actually, both can cause dry eyes and while we can’t fix the aging problem (yet), we can fix the toxic exposure from a computer screen.
The main 2 bad things that monitors do are:
Which as you can guess, is very bad for our eyes.
PWM Flicker is basically the computer screen turning on and off again thousands of times per second and while we can’t perceive it with our eyes our brains can
The best thing to do while having both these in mind is to download Iris
Iris can lower the amount of Blue Light down to 0% and is the only program that can also fully remove PWM flicker