farsightedness
Blurred eyes are caused by nearsightedness, farsightedness and macular degeneration.
The rays of light focus beyond the retina.
When light enters the eye and it focuses behind the retina instead of directly on it, you have farsightedness. Either your eye is too short, your cornea is not curved enough, or your lens sits farther back than it should.
The usual treatment for farsightedness is corrective lenses (spectacles or contact lenses).
Nearsightedness is when you can only see far and farsightedness is when you can only see close.
.... No?
Hyperopia.
The cause of farsightedness in older people is that theirs lenses become relatively brittle. Therefore it becomes difficult for them to focus, especially on nearby objects.
Nearsightedness is called Myopia and farsightedness is called Hyeropia.
hyperopia
a family history of this type of glaucoma, farsightedness, small eyes, age over 40, scarring inside the eye from diabetes or uveitis.