what is meaning of near sightedness and farsightedness
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Nearsightedness (myopia) is a very common condition in which the light coming into the eye is not focused properly onto the retina, making it difficult to see objects far away. ... Farsightedness (hyperopia) is the opposite of myopia, and is usually caused by shortening of the eyeball.
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Nearsighted ness or myopia is the refractive defect of eye lens in which the image is formed in front of retina not on it. This defect can have people seeing close object clearly while the distant one are blurred.
Farsightedness is the defect of eye lens in which image is formed behind the retina not on it. This defect can have people seeing distant object clearly while closer one is blurred.
Farsightedness is the defect of eye lens in which image is formed behind the retina not on it. This defect can have people seeing distant object clearly while closer one is blurred.
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