Question

(a) Write the function of each of the following parts of the human eye: Cornea; iris; crystalline lens; ciliary muscles(b) Millions of people in the developing countries of the world are suffering from corneal blindness. These persons can be cured by replacing the defective cornea with the cornea of a donated eye. A charitable society of your city has organised a campaign in your neighbourhood in order to create awareness about this fact. If you are asked to participate in this mission, how would you contribute in this noble cause?(i) State the objective of organising such campaigns.(ii) List two arguments which you would give to motivate the people to donate their eyes after death.(iii) List two values which are developed in the persons who actively participate and contribute in such programmes.

Answer 1

Cornea protects the eyes
Iris regulates the amount of light entering the eyes
Lens is used to form image
Ciliary muscles hold the lens in position