Poor visual acuity is primarily caused by refractive errors. These
errors occur when the cornea is shaped in such a way that the images
we see do not focus directly on the retina.
Nearsightedness (Myopia)
When you're nearsighted or myopic, images in the distance will seem
blurry. Your eyes may be longer than normal or the cornea may be too
curved, so images focus in front of the retina. |