Question

what is short sightedness? mention the reason for this defect?? name the type of lens used to correct this defect?? how does this lens correct the defect​

Answer 1

Answer:

Myopia is corrected by using spectacles containing concave lenses. Hypermetropia is caused because of: Due to low converging power of eye lens. Due to eyeball being too short ok follow me

Answer 2

Answer:

Hyy mate....

Short sitedness is a defect in which a lerson can see nearby objects distinctly but cannot see distant objects clearly.

This defect arises due to the decrease in focal length of the lense because of

• excessive curvature of eye lense

• elongation of eyeball

It can be corrected by using Concave lense.

A concave lense of suitable power will bring back the image on retina.

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