Short-shightedness cannot be corrected by convex lens,why?

1.	Short-shightedness cannot be corrected by convex lens,why?
Answer» People who are 'short sighted' cannot see things that are far away. They can only see things that are close to them. This is because the eye refracts the light and brings it to a focus before it reaches the retina. This is corrected by using a concave or a diverging lens.

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