I have great acuity. iy  commonly refers to the clarity of vision.
I have never understood how vision works can you explain a little?
I will try first thing is Visual acuity is dependent on optical and neural factors
Ok and guessing if something is wrong with those factors it affects vision?
Exactly. i have heard A common cause of low visual acuity is refractive error'
Ok that makes sense
Yeah, Other optical causes are astigmatism
What is astigmatism? Sorry I don't know these things lol