MedicineNet.com
MedicineNet home Picture Slideshows Diseases and conditions Symptoms and signs Procedures and tests Medications Health and Living Health news and views MedTerms medical dictionary
Font Size
A
A
A


The Cleveland Clinic

Farsightedness

Introduction to Farsightedness

About 1 in 4 people in the U.S. have hyperopia or farsightedness, but fortunately there are more ways to correct this eye disorder than ever before.

People with hyperopia or farsightedness have difficulty focusing on objects close up, such as print in a book. More severe hyperopia would also cause problems with seeing objects in the distance clearly, such as highway signs.

The occurrence of hyperopia increases with age; At least half of all persons over the age of 65 have some degree of farsightedness.

What Causes It?

Hyperopia is a refractive error, like astigmatism and nearsightedness (myopia). Having a refractive error means that light rays bend incorrectly into your eye to transmit images to the brain. Farsightedness occurs when light entering the eye focuses behind the retina, instead of directly on it. An abnormally flat cornea or short eye can cause the light to enter the eye this way.

Hyperopia often runs in families. It is often present at birth; however, many children outgrow it.

What Are the Symptoms of Farsightedness?

Symptoms of farsightedness may include:

  • Headaches
  • Eye strain
  • Difficulty concentrating or focusing on nearby objects
  • Fatigue or headache after performing a close task such as reading

If you experience these symptoms of hyperopia while wearing your glasses or contact lenses, you may need a new prescription.

How Is Farsightedness Diagnosed?

Farsightedness can be easily diagnosed by a basic eye exam given by your eye doctor.

How Is Farsightedness Corrected?

To correct hyperopia you must change the way the light rays bend when entering your eye. Glasses, contact lenses, or refractive surgery can all be used to correct farsightedness.

Depending on the extent of your farsightedness, you may need to wear your glasses or contact lenses at all times, or only when you need to see objects up close, like when reading or sewing. With hyperopia, your prescription is a positive number, such as +3.00. The higher the number, the stronger your lenses will be.

If wearing contacts or glasses isn't for you, refractive surgery can reduce or even eliminate your dependence on glasses or contact lenses. The most common procedures to correct hyperopia include:

  • PRK. During a photorefractive keratectomy a laser is used to flatten the cornea so that light rays can focus closer to, or even on the retina.
  • LASIK. During laser-assisted in situ keratomileusis, a flap is cut through the top of the cornea, a laser removes some corneal tissue, and then the flap is dropped back into place. LASIK is the most common surgery used to correct farsightedness.

An even newer procedure for correcting mild hyperopia is the implantation of plastic corneal rings called Intacs, which also alter the shape of the cornea. One advantage of the rings is that they can be left in place permanently, or they may be removed in case of a problem or adjusted should a prescription change become necessary.

Talk to your eye doctor about which treatment is best for you.

Reviewed by the doctors at The Cleveland Clinic Cole Eye Institute.




Edited by Charlotte E. Grayson, MD, WebMD, October 2004.

Portions of this page © The Cleveland Clinic 2000-2004


Last Editorial Review: 6/21/2005




Printer-Friendly Format  |  Email to a Friend


Suggested Reading by Our Doctors
MedicineNet Doctors
  • LASIK Eye Surgery - Get information about LASIK, refractive surgery for vision correction (of astigmatism, nearsightedness, farsightedness), risk factors (dry eyes, high myopia or hyperopia) and benefits.
  • Eye Care - Get information on eye care tips and eye health, disorders and treatment with OTC eye-care products, and when to see an ophthalmologist about an eye infection or condition.
  • LASEK Laser Eye Surgery - Learn about LASEK laser eye surgery including advantages and disadvantages.

Latest Medical News


WebMD Daily

Get breaking medical news.




Symptoms & Signs A-Z List Pinpoint Your Symptoms - Start Now Symptoms & Signs A-Z List Symptoms & Signs by Female Body Region Symptoms & Signs by Male Body Region

Topics Related to Farsightedness

Procedures & Tests
more »
Diseases & Conditions

Farsightedness
RSS FeedSpecialty RSS       Add to My Yahoo! What is this?

Glaucoma Laser Treatment Glaucoma Laser Treatment
Glaucoma is a sight-stealing condition caused by pressure in the eye. Now patients are finding results through glaucoma laser treatment. See more WebMD Videos »













Health categories:

Slideshows | Diseases & Conditions | Symptoms & Signs | Procedures & Tests | Medications | Health & Living | News & Views | Medical Dictionary

Popular health centers:

Allergies | Arthritis | Cancer | Diabetes | Digestion | Healthy Kids | Heart | Men's Health | Mental Health | Women's Health | More...

Publications:

ePublications (PDFs) | XML News via RSS | Audio Podcasts | Email Newsletters

MedicineNet.com:

About Us | Privacy Policy | Search Help | Site Map | WebMD® | Medscape® | eMedicine® | eMedicineHealth® | RxList®

This website is certified by Health On the Net Foundation. Click to verify. This site complies to the HONcode standard for trustworthy health information:
verify here.

©1996-2009 MedicineNet, Inc. All rights reserved. Notices and Legal Disclaimer.
MedicineNet does not provide medical advice, diagnosis or treatment. See additional information.