Question

Pls answer this question.

Answer 1

Answer:

I) 1:Iris

2:Radial muscles

3:Pupil

2)The circular muscles of iris contract and radial muscles relax

3)The radial muscles bring about the change

4)The iris contain radial muscles to widen and circular muscles to contract

5)Astigmatism:objects are blurred whole some are seen in focus

Presbyopia:Caused due to inflexibility of the lens... Near objects cannot be seen clearly