Question

How does the change in curvature of the eye lens helps us in the process of seeing the nearby objects clearly?

Answer 1

To see nearby objects clearly, the eye increases the curvature of the eye lens (it becomes more convex).

• The ciliary muscles contract, making the lens thicker.
• This increases the focal length power (decreases the focal length) of the lens.
• As a result, light rays from nearby objects are properly focused on the retina, producing a clear image.

This adjustment is called accommodation of the eye.