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Refractive errors and myopia

in case of refractive error, the length of an adult eyeball either increases or decreases. There are two types of refractive errors :
– Myopia : It is commonly known as near-sightedness. it causes an error in visual focussing that leads to difficulty in seeing distant objects
clearly. With this disorder, a person has no problem in seeing objects that are near. But objects in the distance are blurred.

What causes Myopia ?
Myopia may be caused by the eyeball being too long from front to back, or by the lens power being too strong. Near sightedness
often develops in the school going age and usually stabilises soon after.

What are symptoms of Myopia ?
A Myopic person will often be found squinting to focus on distant objects. Symptoms include :
* Blurred vision
* Strain in the eyes
* Headaches

What is the treatment for Myopia ?
Problems of near-sightedness can easily be countered with the use of accurately prescribed eyeglasses or contact lenses. Contact an
eye doctor.

– Hypermetropia : It is commonly known as long-sightedness. It is an error of visual focusing that causes difficulty in seeing objects that
are near. Under Hypermetropia, distant objects can be seen clearly but objects nearby are blurred.

What causes Hypermetropia ?
Hypermetropia usually occurs due to the length of the eyeball being too small or the lens power being too weak. It can develop at any age.

What are the symptoms of Hypermetropia ?
The symptoms are similar to Myopia. These include :
* Blurred vision.
* Squinting.
* Strain in the eyes.
* Headaches.

What is the treatment for Myopia ?
Problems of near-sightedness can easily be countered with the use of accurately prescribed eyeglasses or contact lenses. Contact an
eye doctor.

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