Q21 of 30 Page 16

What is the function of eyelids?

The function of eyelids is to protect eyes from any objects entering the eye. Eyelids also shut out light when not required.

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19 Explain the internal structure of human eye. Also discuss the functions of various parts of the eye. 20 How many kinds of nerve ending are found is human eye? What are their functions? 22 What is the comfortable distance at which one can read with a normal eye? 23 Explain the function of the muscles attached to the lens of the eye