I've always wanted lenses, but my eyesight is good
Do you know what your clarity of vision is, or VA?
What's VA?
VA is visual acuity. It depends on factors like the health of the retina, the sensitivity of the interpretative faculty of the brain, etc.
Oh, how would I find that out?
I would think an Optometrist. If you're having trouble with vision, a cause could be a refractive error, meaning a problem with how light is refracted in the eyeball.
Oh no i'm not having trouble with vision. I have great vision
Near-sightedness
Near-sightedness, also known as short-sightedness and myopia, is an eye disorder where light focuses in front of, instead of on, the retina. This causes distant objects to be blurry while close objects appear normal. Other symptoms may include headaches and eye strain. Severe near-sightedness is associated with an increased risk of retinal detachment, cataracts, and glaucoma.
The underlying cause is believed to be a combination of genetic and environmental factors. Risk factors include doing work that involves focusing
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