Given below is a diagram showing defect of human eye .

Give two possible reasons for this defect eye defect .

Given below is a diagram showing defect of human eye . Give two possible reasons for this defect of eye in human beings .

Given below is a diagram showing defect of human eye . Name the type of lens used to correct the eye defect.

Given below is a diagram showing defect of human eye . Draw a labelled diagram to show how the defect is rectified by using the lens.

Defects OF Human Eyes

Observe the following diagram and answer the questions. What are the possible reasons for this eye defect ?

Noopur needs a lens of power-4.5 D for correction of her vision. Draw ray diagrams showing the (a) defected eye and (b) correction for this defect.

Nooper needs a lens of power - 4.5 D for correction of her vision. (a) What kind of defect in vision is she suffering from ? (b) What is the focal length and nature of corrective lens ? (c) Draw ray diagrams showing the defected eye and correction for the defect. (d) What are the causes of this defect ?