Question

Given alongside is a diagram depicting a defect of the human eye. Study the same and then answer the questions that follow:

1. Name the defect shown in the diagram.
2. What are the two possible reasons that cause this defect?
3. Name the type of lens used to correct this defect.
4. With the help of a diagram, show how the defect shown above is rectified using a suitable lens.

Answer 1

1. Myopia
2. The possible reasons for myopia are:
   1. Lengthening of the eyeball.
   2. Excessive curvature of the lens.
3. Concave lens
4.