myopia

 Myopia or near-sightedness

Near sightedness is refractive error in which distant objects are fairly clear but images close up are blurred. 

In near sightedness distance between cornea and retina is too large. The image is formed in front of the retina.

So myopic person sees blurry at long-distance but well at short-distance.

Correction of myopia using convex lenses.