I have visual acuity, which means I have visual clarity.
Interesting, Ive heard of that term before but never gave any thought to it, Can you tell me more about it? 
Well, it is dependent on optical and neural factors like the sharpness of the retinal focus, the health of the retina, and the sensitivity of the brain's interpretative capabilities
Fascinating, so in a sense its like having a super power? Is their any stories of people with such abilities doing extra ordinary things?
the shape of the eyeball or the cornea, and reduced flexibility of the lens. Too high or too low refractive error (in relation to the length of the eyeball) is the cause of nearsightedness (myopia) or farsightedness (hyperopia) (normal refractive status is referred to as emmetropia). Other optical causes are astigmatism or more complex corneal irregularities. These anomalies can mostly be corrected by optical means (such as eyeglasses, contact lenses, laser surgery, etc.).
Neural factors that limit acuity are located
Visual acuity
Visual acuity (VA) commonly refers to the clarity of vision. Visual acuity is dependent on optical and neural factors, i.e., (i) the sharpness of the retinal focus within the eye, (ii) the health and functioning of the retina, and (iii) the sensitivity of the interpretative faculty of the brain.
A common cause of low visual acuity is refractive error (ametropia), or errors in how the light is refracted in the eyeball. Causes of refractive errors include aberrations in