Hyperopia or farsightedness 

Hyperopia is a refractive error which means you can't see close objects. It happens when the axial length of the eye is shorter than normal due to squeezing a couple of internal extra-ocular muscles at the same time so light rays focus at a point behind the retina, rather than directly on its surface.

It can also happen in children who haven't yet fully developed their eyes. 

Hyperopia. Natural eyesight improvement. Alternative to glasses. Pinhole glasses. Bates Method Teacher. Bates Method exercises. How to improve my eyesight naturally.