Here is a list of eye conditions that might cause people to wear glasses or contact lenses. It means, basically, that you can see things that are near-clearly. Things that are far away might appear fuzzy or blurry. This is because the lens or the cornea is not refracting light properly. Sometimes one or both of the eyes is too long.
Images get focused right in front of the retina instead of on the surface of the retina.
This is when you can see things far away-clearly, but objects that are close to you are fuzzy or blurry. Unlike someone who is nearsighted, when you are farsighted your eyeballs are too short. When the eyeball is too short images are focused behind the retina's surface instead of right on it. Astigmatism This means the cornea is an uneven shape and it bends light in different directions. When this happens what you see is distorted and appears fuzzy or blurry.