Background Paragraph: Farsightedness, or hyperopia, is the condition in which distant objects are seen clearly, but nearby objects appear blurry. It occurs when the eyeball is shorter than normal (see Figure below ). This causes images to be focused in a spot that would fall behind the retina (if light could pass through the retina). Hyperopia can be corrected with convex lenses. The lenses focus images farther forward in the eye, so they fall on the retina instead of behind it. 
Story: John is a an ophthalmologist in a local hospital. Today, he has seen two patients, patient A and patient B. Patient A had hyperopia, but patient B didn't have any issues with eyes. John would now treat the patient that have eye problem.
For whom John would not prescribe convex lenses, pateint A or patient B? For whom John would prescribe convex lenses, pateint A or patient B? In patient A would images fall behind the retina or on the retina? Which pateint would not have shorter eyeball, patient A or patient B? Which patient would have shorter eyeball, patient A or patient B? Which patient would not see nearby objects clearer, patient A or pateint B? Which patient would see nearby objects clearer, patient A or pateint B? Would patient A see faraway objects similarly or differently than patient B? Would patient A see nearby objects clearer or blurrier than patient B? Would patient B see nearby objects clearer or blurrier than patient A?