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 |  | Myopia: What Causes It? Myopia   is a refractive error also known as   nearsightedness   or   shortsightedness  .  (Refractive errors are named for where the uncorrected vision is  better; in this case, nearsightedness gives good vision up close, but  blurriness for things in the distance.) 
 
    
 
     
 
 
 
 In an eye that is myopic, light rays entering the eye are brought to a  focus in front of the retina instead of exactly on it, so images are  blurry instead of being sharp and clear.  When the myopi...Read More
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