Question

what is mean by term power of accomodation of human eye ? How does it help a person to see nearby as well as distinct object clearly?

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Answer 1

Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies. ... Mammals, birds and reptiles vary the optical power by changing the form of the elastic lens using the ciliary body (in humans up to 15 dioptres).

Answer 2

Answer:

The term 'Power of accommodation' of human eye refers to the ability of an eye to change the focal length of the eye lens. ... But to focus on nearby objects the ciliary muscles contract making the eye lens thick. As a result the focal length of the eye lens decreases and we see the nearby objects.