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Question
A student sitting in the last row of the class-room is not able to read clearly the writing on the blackboard.
How can this defect by corrected?
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Solution
To correct his defect, he should use concave lenses in his spectacles.
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RELATED QUESTIONS
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.
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Name the defect shown in the diagram.
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Observer the following diagram and answer the questions.
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b) What are the possible reasons for this eye defect?
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Have a look at the posture of this woman who is reading a book and answer the questions which follow:
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Name the following:
The defect of the human eye caused due to the uneven surface of the cornea.
Due to elongation of _______ and increase in curvature of the eye lens, a person cannot see distant objects clearly.
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Myopia may arise due to ____________.
