Question

When the cornea and lens of the eye do not properly focus

light onto the retina, corrective lenses are needed. When are concave lenses
appropriate for vision correction?

Answer 1

When there is nearsightedness or myopia

Step-by-step explanation:

As, in myopia the image is formed in front of the retina.

Which makes things looking at things near very easy, but looking at far away things very difficult.

So concave lens makes things look bigger, so therefore, it is used during myopia, to make things look bigger when they are far away