I found out that I need glasses - apparently my clarity of vision is not all that great.
Yikes how long have your eyes been going bad?
Just since I turned 40 - apparently it has to do with how the light is refracted in the eyeball.
I'm in the same boat. I'm 33 but looking the computer to long gives me a headache. I need readers. Are you getting glasses or contacts? 
Mine is mostly distance caused by an astigmatism - contacts don't work as well on that apparently.