What is "far-sightedness"?
In contrast far-sightedness means your distance vision is not very good and things up close are really blurry. You're far-sighted if the curvature of the front part of your eye, what we call the cornea, the part you can touch, you touch right there. If curvature of the cornea is too little for the size of your eye. We correct that with either glasses or contacts, or by making the cornea more curved: that's what laser surgery does. Far-sightedness is very common. Perhaps ninety million people in America are far-sighted. People typically find out they're far-sighted in their mid thirties, because they start having trouble reading. They find themselves holding the book material further away. They may be getting headaches, their eyes feel fatigued, sometimes their eyes will cross. These can all be signs of far-sightedness which tends to become more symptomatic as you get older.