Hypermetropia is a:

If you are using eyeglasses of power $2 D$, what is your near point (in $cm$)?

When the power of the eye lens increases,a defect of vision is produced. This defect is known as:

The near point and far point of a normal human eye are respectively:

$A$ man cannot see clearly the objects beyond a distance of $20 \, cm$ from his eyes. To see distant objects clearly,he must use which kind of lenses and of what focal length?

The ability of the eye to see objects at all distances is called