High degrees of astigmatism will cause blurred vision for distance and near objects. Farsightedness Technically called hyperopia, farsightedness means you have trouble with close up vision. It occurs when the eye is functionally too short. The rays of light are focused behind the retina producing a blurred image. This ability worsens with age and reading glasses or bifocals may be needed.
Farsighted people see distance objects more clearly than near objects.
Aging eyes Presbyopia is a normal aging process. As we get older, the lens loses its ability to flex and focus at near. The onset of presbyopia typically is between 40 and 50. When this occurs people who already wear glasses may need bifocals and those who have never worn glasses may require reading glasses. Presbyopia is an important concept to understand if you are considering laser correction.