Hyperopia normally means that, the eye can not clearly see close objects, but can clearly see distant objects. The main cause is genetic, and the symptoms may include: blurred vision, asthenopia, accommodative dysfunction, binocular dysfunction, amblyopia, strabismus.
Hyperopia occurs because of the eye structural defects. These structural defects often means that, the cornea has too little curvature, or the eyeball is too short, making light rays to focus incorrectly. This is often because the light focal lines are located behind the retina.
Eye exams, especially the cycloplegic exam, can normally detect hyperopia. The usual treatment is corrective eyewear (spectacles or contact lenses).