Question

why is concave len used to treat myopia?

Answer 1

Some persons can see near objects clearly but have difficulty to see distant objects. This defect is called short- sightedness or myopia.In such a case,the image is formed in front of the retina. Such a defect can be corrected by using concave lenses.

Answer 2

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Here's your Answer...

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Myopia is caused when the eye ball get enlarged.


They spread the light out before it reaches the convex lens in the eye, therefore letting the image focus directly on the retina.