Nearsightedness explained


Posted by unclesam | Posted in Uncategorized | Posted on 24-01-2015

Nearsightedness explanation : Nearsightedness can be explained as an eye condition in which you can see nearby objects clearly, myop2but faraway objects appear fuzzy or blurry. Nearsightedness is also called myopia. For example, a person who is nearsighted may not be able to make out highway signs until they are just a few feet away.

What Causes Nearsightedness?  People who are nearsighted have what is called a refractive error. A refractive error occurs when your eye does not focus light correctly.                                                                    If you are nearsighted, your eye focuses light entering the eye in front of the retina instead of onto the retina. The myopretina is the surface at the back of your eye that collects light.The retina changes the light into electrical impulses that your brain reads as images.                    A myopic, or nearsighted, eye focuses incorrectly because its shape is slightly abnormal.  A nearsighted eyeball is usually a little too long, and sometimes, its cornea is too rounded. The cornea is the clear covering on the front of your eye. Nearsightedness runs in families and usually appears in childhood.

Symptoms of myopia    People who are nearsighted often complain of headaches, eyestrain, squinting, or fatigue when driving, playing sports, or looking more than a few feet away. Children commonly complain of not being able to see the board at school.

Correction for nearsightedness may include:                                           Eyeglasses and contact lenses.  These devices compensate for the curvature of your cornea myop1or the elongation of your eye by shifting the focus of light as it enters your eye.Your prescription strength will depend on how far you can see clearly. You may need to wear corrective lenses all the time or just for certain activities, such as driving.

Contact lenses generally give you a wider field of corrected vision than glasses. Contact lenses are applied directly to the corneas of your eyes. Some patients cannot tolerate contact lenses because they irritate the surface of their eyes.

Refractive surgery is a permanent form of correction for nearsightedness. Also called laser eye surgery, the procedure reshapes your cornea to focus light onto the retina.

Eye muscle exercises include conditioning, strengthening, and toning the six muscles in your eye to naturally improve you vision.


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