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Difference between revisions of "Difference Between Myopia And Hypermetropia"

(Created page with " Hypermetropia and Myopia , both are refractive defects in vision and are nearly opposite in nature. Below are the differences between the two . <tab sep=bar head=top class=...")
 
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Hypermetropia and Myopia , both are refractive defects in vision and are nearly opposite in nature. Below are the differences between the two .
 
Hypermetropia and Myopia , both are refractive defects in vision and are nearly opposite in nature. Below are the differences between the two .
  
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  Another cause can be the elongation of eye ball.        | It may also be caused due to flattening of the eyeball .
 
  Another cause can be the elongation of eye ball.        | It may also be caused due to flattening of the eyeball .
 
Myopia can be corrected by using concave lens of suitable focal length.| Hypermetropia may be corrected using convex lens of suitable focal length .
 
Myopia can be corrected by using concave lens of suitable focal length.| Hypermetropia may be corrected using convex lens of suitable focal length .
 
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[[File:my.png]]  |   [[File:Hy.png]]
 
 
 
 
 
   
 
   
 
   
 
   

Revision as of 22:11, 28 April 2016

Hypermetropia and Myopia , both are refractive defects in vision and are nearly opposite in nature. Below are the differences between the two .


Myopia Hypermetropia
Myopia is also known as near-sightedness . Hypermetropia is also known as far-sightedness.
In myopia , a person is not able to see distant objects clearly. In hypermetropia , a person is not able to clearly see the nearby objects.
In this defect , lens are not able to produce sharp image of the distant objects on the retina instead the image is formed in front of the retina . In this defect , image is formed behind the retina.
The reduction in the focal length of the eye lens may be a possible cause. The increase in focal length of the eye lens may be a cause.
Another cause can be the elongation of eye ball. It may also be caused due to flattening of the eyeball .
Myopia can be corrected by using concave lens of suitable focal length. Hypermetropia may be corrected using convex lens of suitable focal length .
My.png Hy.png

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