Farsightedness

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Farsightedness (hyperopia) is a common vision condition in which you can see distant objects clearly, but objects nearby may be blurry.

The degree of your farsightedness influences your focusing ability. People with severe farsightedness may see clearly only objects a great distance away, while those with mild farsightedness may be able to clearly see objects that are closer.

Farsightedness usually is present at birth and tends to run in families. You can easily correct this condition with eyeglasses or contact lenses. Another treatment option is surgery.

Farsightedness may mean:

If your degree of farsightedness is pronounced enough that you can’t perform a task as well as you wish, or if your quality of vision detracts from your enjoyment of activities, see an eye doctor. He or she can determine the degree of your farsightedness and advise you of options to correct your vision.

Since it may not always be readily apparent that you’re having trouble with your vision, the American Academy of Ophthalmology recommends the following intervals for regular eye exams:

If you’re at high risk of certain eye diseases, such as glaucoma, get a dilated eye exam every one to two years, starting at age 40.

If you don’t wear glasses or contacts, have no symptoms of eye trouble, and are at a low risk of developing eye diseases, such as glaucoma, get an eye exam at the following intervals:

If you wear glasses or contacts or you have a health condition that affects the eyes, such as diabetes, you’ll likely need to have your eyes checked regularly. Ask your eye doctor how frequently you need to schedule your appointments. But, if you notice any problems with your vision, schedule an appointment with your eye doctor as soon as possible, even if you’ve recently had an eye exam. Blurred vision, for example, may suggest you need a prescription change, or it could be a sign of another problem.

Children need to be screened for eye disease and have their vision tested by a pediatrician, an ophthalmologist, an optometrist or another trained screener at the following ages and intervals.

Your eye is a complex and compact structure measuring about 1 inch (2.5 centimeters) in diameter. It receives millions of pieces of information about the outside world, which are quickly processed by your brain.

With normal vision, an image is sharply focused onto the retinal surface. But, if you’re farsighted, your cornea doesn’t refract light properly, so the point of focus falls behind the retina. This makes close-up objects appear blurry.

Your eye has two parts that focus images:

In a normally shaped eye, each of these focusing elements has a perfectly smooth curvature, like the surface of a marble. A cornea and lens with such curvature bend (refract) all incoming light to make a sharply focused image directly on the retina, at the back of your eye.

If your cornea or lens isn’t evenly and smoothly curved, light rays aren’t refracted properly, and you have a refractive error.

Farsightedness occurs when your eyeball is shorter than normal or your cornea is curved too little. The effect is the opposite of nearsightedness. In adults with farsightedness, both near and distant objects can be blurred.

In addition to farsightedness, other refractive errors include:

Farsightedness can be associated with several problems, such as:

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Farsightedness

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