how does power of accommodation help a person to see nearby as well as distant objects clearly
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Power of Accommodation. The process by which the ciliary muscles change the focal length of an eye lens to focus distant or near objects clearly on the retina is called the accommodation of the eye.
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The term 'Power of accommodation' of human eye refers to the ability of an eye to change the focal length of the eye lens.
It is further done by the contraction and relaxation of ciliary muscles in order to see DIFFERENT objects at DIFFERENT positions.
To focus on distant objects the ciliary muscles relax making the eye lens thin.
As a result the focal length of the eye lens increases and we see the distant objects.
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.
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