Myopia, which is the defect in an eye due to which the eye can clearly see only the closer objects. The objects at a distance will not be clear and with this defect, an eye will not be able to read letters which are a little far.
The cure for the nearsighted eye is to equip it with a diverging lens. Since the nature of the problem of nearsightedness is that the light is focused in front of the retina, a diverging lens will serve to diverge light before it reaches the eye. This light will then be converged by the cornea and lens to produce an image on the retina.