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Hyperopia
Hyperopia, more commonly known as far sightedness, results in a person have blurred vision at a near and clear vision at a distance.
In a perfect eye, incoming light is focused on the macula. However, not every eye is perfect. If the image is not brought to a focus by the time it reaches the macula, the condition of hyperopia exists. You might have heard hyperopia referred to as being far sighted. Generally speaking, a person who is farsighted has blurred vision at a near, but clear vision at a distance.The usual cause of hyperopia is an eyeball that is slightly shorter than normal. This causes image to focus too late. Hyperopia is corrected with plus lenses. A plus lens condenses the in-coming image just enough to cause the focused image to fall on the retina instead of behind it.Farsighted children are often not bothered by their condition. This is because the crystalline lens (which lies behind the pupil) has the ability to add plus power to the eye. However, this means that the eye is always straining to see even though the person may not be aware of it. Because of this, a farsighted child might complain about wearing glasses at first. However, if encouraged to wear the glasses, the eye will learn to relax. Contact lenses may be used later, and some refractive surgeries can correct hyperopia as well.
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