Nearsightedness (myopia) is one of the most common eyesight disorders. Presently, it is more widespread in the USA than it was 30 years ago*.
Individuals with impaired vision because of myopia certainly know what nearsightedness is. They must be aware of treatment and prevention methods that are available. People who still enjoy perfect vision and specifically people involved in activities that require constant eye concentration, need to learn what nearsightedness is and its causes. Knowing the best treatment options for myopia can be extremely helpful in protecting you from poor vision or bad eyesight.
Studies have revealed that myopia can be caused by several different things. Many years ago it was commonly thought that the inability of a person to see distant objects was primarily hereditary. In other words, if you have a family history of myopia, you will be myopic too. However, recent studies show that a number of environmental and lifestyle factors also contribute to the development of nearsightedness. Furthermore, the risk factors of nearsightedness affect virtually anyone- even those with no family history of eye diseases or eyesight disorders.
The best way to understand nearsightedness and which factors may increase your risk of it is to exam the basic cause of myopia. Nearsightedness may occur in children or adults and it develops when the eyeball elongates (becomes egg-shaped and not round). This irregularity of the eyeball causes light to focus in front the retina instead on it. The result is blurred distant vision which becomes worse as myopia progresses.
The changes of the eye shape may be hereditary – a person may be born with longer eyeball than normal. They may also develop later in life and be triggered by frequent and prolonged close eye work, lack of eye relaxation, poor nutrition and so on.
But nearsightedness is treatable – people with nearsightedness may choose between prescription eyeglasses, contact lenses and corrective eye surgery. If eyeglasses and contacts are undesirable and eye surgery seems a risky choice, one can consider a number of effective natural vision correction methods.
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