Define power of accommodation of human eye and Calculate its value for a normal human eye.
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The process by which the ciliary muscles change the focal length of an eye lens to focus distant ot near objects clearly on the retina is called the accommodation of the eye .
Power of accommodation is given by P = 1 / f ( in m ) = 1 /.25 ( since f = 25 cm for normal eye ) = P = 100/25 = 4 D .
Power of accommodation is given by P = 1 / f ( in m ) = 1 /.25 ( since f = 25 cm for normal eye ) = P = 100/25 = 4 D .
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the ability of the eye to focus both near and distant objects , by adjusting the focal length is called accommodation of the eye or the ability of the ciliary muscles to change accommodation.
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