People wear glasses for several reasons. People who have "fuzzy" vision when they look at distant objects are called nearsighted (myopic). In these people, the image is focused in front of the retina. The lens of glasses needed to correct vision in nearsighted people is concave.
People need glasses for many different reasons, stigmatizims, “fuzzy vision”, or random spots that they see. Glasses or contacts can even enlarge things if you can’t see far away.
