General

When a person has to use a concave lens in his spectacles?

By User
On

” someone wears a concave lens, it spreads out the incoming light rays, helping the image to focus directly on the retina. Without this lens, the image would form in front of the retina. This is typical in nearsightedness, where a person has trouble seeing distant objects clearly.

Also Check:

Related Posts:

  1. Which part of the eye dilates and contracts?
  2. What are the cells on the retina called?
  3. what is power of lens?
  4. what is meant by power of accommodation of the eye?
  5. Why do corneal transplants have minimal risk of rejection?
  6. Introduction to Light