Explain the structure and functioning of Human eye. How are we able to see nearby as well as distant objects?
 
Match the functions of the Human eye:
Answer variants:
Eye's back surface
Regulates the amount of light entering the pupil
Power of accommodation
Light's path to the retina
Front surface of the eyeball
Column A
Column B
1. Cornea
2. Iris
3. Ciliary muscles
4. Pupil
5. Retina
 
Our eyes can change the  of the lens and hence it can focus on the images from help in changing the focal length of the lens.