Abnormalities in the normal vision of the eye are called defects of vision.

The far point of a myopic person is $40 \, cm$. What type of lens should they wear to see distant objects clearly? Calculate the focal length and the power of the lens they should use.

Where is the image formed in an eye suffering from near-sightedness?

What is the range of clear vision for a person with normal vision?

Why is a normal eye not able to see clearly the objects placed closer than $25 \,cm$?

How are we able to see nearby and also the distant objects clearly?