Q23 of 30 Page 16

Explain the function of the muscles attached to the lens of the eye

In order to see near objects, muscles attached to the lens contract and the lens becomes thicker. On the other hand, muscles relax and the lens becomes thinner when distant objects are to be seen. This changing of the thickness of the eye lens is called accommodation.

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21 What is the function of eyelids? 22 What is the comfortable distance at which one can read with a normal eye? 24 What are the two defects of eye is seeing near and far objects? How can these defects be corrected? 25 Why in odd ages the eye sight becomes foggy? How can this defect may be removed?