Difference between shortsightedness and longsightedness
Most people who begin wearing glasses or contacts when they are young have one of three common vision problems: Myopia (nearsightedness), hyperopia (farsightedness), or astigmatism. All of these are called refractive errors rather than eye diseases. Longsightedness and shortsightedness are much more common if one of the parents already has one of them. Aside from…