Best Monitor Size for someone with poor eyesight?

[Yodaskool]

Hey, I'm planning on building a PC and stuck on the "choose a monitor" step. My main question is how large of a monitor would suit me.

My eyesight number things (don't know the official word) is -2.50, which means I can see to around half a meter away until my sight gets fuzzy.

 

[SPgamer007]

Use lenses/glasses? my vision is not good too, -3.50 something.BTW you want to build a gaming pc or regular?
if you're buying a screen for your gaming pc,what GPU you have?

 

[Eduello]

So you don't have glasses? I'd say 21.5" would be pretty good for a 0.5m distance.