Farsightedness
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD medical weight loss NYC and sleep center NYC
Farsightedness | |
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Synonyms | Hyperopia, hypermetropia |
Pronounce | N/A |
Specialty | N/A |
Symptoms | Blurry vision, eye strain, headaches |
Complications | Amblyopia, strabismus |
Onset | Often noticed in childhood |
Duration | Lifelong |
Types | N/A |
Causes | Genetics, eye anatomy |
Risks | Family history, age |
Diagnosis | Eye examination |
Differential diagnosis | Myopia, astigmatism, presbyopia |
Prevention | None |
Treatment | Eyeglasses, contact lenses, refractive surgery |
Medication | N/A |
Prognosis | N/A |
Frequency | Common |
Deaths | N/A |
Farsightedness, also known as hyperopia, is a common type of refractive error where distant objects may be seen more clearly than objects that are near. However, people experience farsightedness differently. Some people may not notice any problems with their vision, especially when they are young. For people with significant farsightedness, vision can be blurry for objects at any distance, near or far.
Causes
Farsightedness is the result of the visual image being focused behind the retina rather than directly on it. It occurs when the eyeball is too short, which prevents incoming light from focusing directly on the retina. It can also be caused by an irregular shape of the cornea or lens.
Symptoms
Symptoms of farsightedness may include difficulty concentrating and maintaining a clear focus on near objects, eye strain, fatigue and/or headaches after close work, aching or burning eyes, irritability or nervousness after sustained concentration.
Diagnosis
A comprehensive eye examination by an optometrist or ophthalmologist can diagnose farsightedness. The exam will include tests to assess vision and the ability to focus and coordinate the eyes. The doctor will also check the overall health of the eyes.
Treatment
Farsightedness can be corrected with glasses or contact lenses to change the way light rays bend into the eyes. You may need to wear your glasses or contacts all the time or only when you need very clear, detailed vision. If you are mildly farsighted, your eyes may be able to compensate without the need for corrective lenses. In severe cases, laser surgery can be an option.
Prevention
There is no way to prevent farsightedness. However, regular eye exams can help detect farsightedness early.
Images
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Cross-sectional view of the human eye
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Contributors: Prab R. Tumpati, MD