Myopia: What Causes It? Myopia is a refractive error also known as nearsightedness or shortsightedness . (Refractive errors are named for where the uncorrected vision is better; in this case, nearsightedness gives good vision up close, but blurriness for things in the distance.)
In an eye that is myopic, light rays entering the eye are brought to a focus in front of the retina instead of exactly on it, so images are blurry instead of being sharp and clear. When the myopi...Read More
