Correction Using Glasses
 

Below are graphics that explain the way that glasses work to improve your vision.  The thicker you make the lenses, the stronger the correction.
For an explanation of nearsightedness and farsightedness, click the link below:

 Vision abnormalities

This is a picture of the way an eye with nearsightedness would focus light and images.
 


 
 
 
 
 

This is how glasses help to re-focus the light and allow a nearsighted person to see clearly.
 


 
 
 
 
 
 

This is a picture of the way an eye with farsightedness would focus light and images.


 
 
 
 
 
 

This is how glasses help to re-focus the light and allow a farsighted person to see clearly.