A teacher drew the diagram of heart on the blackboard and told the students to copy it in their notebooks. Mahesh couldn’t see the diagram clearly as it appeared blurred to him.

(a) Name the defect of the eye Mahesh is suffering from.

(b) Where is the image formed in this defect?

(c) Mahesh consults an eye doctor and is prescribed suitable lenses to correct the defect. Which type of lens do his spectacles have?

(a) Mahesh is suffering from myopia, also known as nearsightedness.

(b) In myopia, the image is formed in front of the retina, instead of directly on the retina.

(c) To correct myopia, Mahesh would need concave lenses.