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Question
Choose the Odd One Out:
Options
Myopia
cataract
Hypermetropia
Squint
cretinism
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Solution
cretinism
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RELATED QUESTIONS
Given below is a diagram showing a defect of human eye. Study it and answer the following questions.

(i) Name the defect shown in the figure.
(ii) Give reason for this defect of eye in human being.
(iii) Name the type of lens used to correct the eye defect.
Name any two defects of vision which can be corrected by using spectacles.
Where is the near point of a person suffering from hypermetropia (or long-sightedness)?
Your friend can read a book perfectly well but cannot read the writing on blackboard unless she sits on the front row in class.
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- What type of lenses-converging or diverging-would an optician prescribe for her?
A person can read a book clearly only if he holds it at an arm's length from him. Name the defect of vision:
- if the person is an old man
- if the person is a young man
Describe the mechanism of focusing the image of a distant object in your eye when you raise your head after reading a book.
Explain the terms ‘adaptation’ and ‘accommodation’ with reference to the eye.
Have a look at the posture of this girl who is reading a book and answer the questions which follow:

Name the problem she is facing.
Name the following:
The photosensitive pigment present in the rod cells of the retina.
Explain the Term: Presbyopia
