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Hyperopia, also known as farsightedness, longsightedness or hypermetropia, is a defect of vision caused by an imperfection in the eye (often when the eyeball is too short. or when the lens cannot become round enough), causing difficulty focusing on near objects, and in extreme cases causing a sufferer to be unable to focus on objects at any distance. As an object moves toward the eye, the eye must increase its power to keep the image in focus on the retina. If the power of the cornea and lens is insufficient, as in hyperopia, the image will appear blurred.
Alternative Names of Hyperopia are: farsightedness, longsightedness or hypermetropia.
Complications of Hyperopia
The list of complications that have been mentioned in various sources for Hyperopia includes:
Causes of Hyperopia
Signs & Symptoms of Hyperopia
Symptoms of farsightedness may include:
If you experience these symptoms of hyperopia while wearing your glasses or contact lenses, you may need a new prescription.
Diagnosis of Hyperopia
Farsightedness can be easily diagnosed by a basic eye exam given by your eye doctor.
Treatments of Hyperopia
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:
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.
Prevention of Hyperopia
When to seek Medical Advice
If you have a sudden change, loss, or disturbance in your vision, pain in your eye, or yellow or greenish discharge from your eye, see the topic Eye Problems, Noninjury to evaluate your symptoms. You may need immediate care.
Call your doctor for a routine eye exam at recommended intervals throughout life or if:
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