Nearsightedness or Myopia is an eye trouble that makes objects at a distance to be blurred. A nearsighted person can clearly see objects that are close to them, but has a difficulty focusing on objects that are far away.
Near Sightedness – Signs and Symptoms:
Somebody with nearsightedness may squint noticeably when trying to view distant objects. They may also sit very close to the television or bring books very close to their eyes when reading. Sometimes nearsightedness causes people to be totally unaware of far away objects.
Nearsightedness – Causes:
Nearsightedness takes place when the eyeball is somewhat longer than normal, or when the cornea is steeper than average. These conditions cause light to focus in front of the retina instead of directly on its surface. In majority of cases, nearsightedness is inherited. Still there is some evidence that suggest that intense close-up activities, such as reading for prolonged periods of time at close range or playing video games for many hours, in early adulthood can bring on nearsightedness.
Nearsightedness – Diagnosis:
Nearsightedness is commonly detected during childhood, between the ages of 10 and 20. Nearsightedness, is often detected when a child complains of not being able to see the blackboard. The condition often continues to get worse, but stabilizes in the mid to late-twenties. Nearsightedness is diagnosed by a comprehensive eye examination finished by an optometrist or ophthalmologist. A refraction test will be performed during the examination confirming the diagnosis of myopia.
Nearsightedness – Treatment:
Nearsightedness may merely reduce your quality of life or cause eyestrain. In some cases, nearsightedness may bring up safety issues in the work place and also enhance your risk of certain eye diseases, such as glaucoma or retinal detachment.
Depending upon the level of nearsightedness, some people may only need glasses for driving or watching a movie. Others with a high degree of nearsightedness may only have clear vision a few inches from their nose. Nearsightedness can be treated with glasses, contact lenses or with laser procedures, such as LASIK. In some cases, nearsightedness may also be treated with a corneal-reshaping procedure, although results are usually temporary in nature.