(a) List the parts of the human eye that control the amount of light entering into it. Explain how they perform this function. (b) Write the function of retina in human eye. (c) Do you know that the corneal-impairment can be cured by replacing the defective cornea with the cornea of the donated eye? How and why should we organise groups to motivate the community members to donate their eyes after death?



A) the two parts which control amount of light entering into human eye are cornea and pupil