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प्रश्न
Name the following:
Short sightedness.
उत्तर
Myopia
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संबंधित प्रश्न
What is the principal function of the eye-lens?
What do the ciliary muscles do when you are focusing on a nearby object?
What change is made in the eye to enable it to focus on objects situated at different distances? Illustrate your answer with the help of diagrams.
There are two types of light-sensitive cells in the human eye:
What is each type called?
What are rods and cones in the retina of an eye? Why is our night vision relatively poor compared to the night vision of an owl?
What happens to the size of pupil of our eye (i) in dim light (ii) in bright light?
What shape are your eye-lenses:
when you look at a distant tree?
A person got his eyes tested. The optician's prescription for the spectacles reads:
Left eye: − 3.00 D
Right eye: − 3.50 D
The person is having a defect of vision called:
(a) presbyopia
(b) myopia
(c) astigmatism
(d) hypermetropia
State whether the following statement is true or false:
Rabbit has eyes which look sideways.
What are the advantages of having two eyes instead of just one?
The figure below compares a part of our eye with a part of a photographic camera.
Explain the mode of working and the functions of the parts of the eye mentioned above.
What happens to the image distance in the normal human eye when we decrease the distance of an object, say 10 m to 1 m? Justify your answer.
Name the following:
The innermost layer of the eye
State the Function:
Visual purple
Which part of the eye gets affected if someone is suffering from cataract? How is it treated?
The innermost layer of human eye is ______.
Match the following:
| Column - I | Column - II |
| 1. Retina | a. Path way of light |
| 2. Pupil | b. Far point comes closer |
| 3. Ciliary muscles | c. near point moves away |
| 4. Myopia | d. Screen of the eye |
| 5. Hypermetropia | e. Power of accommodation |
Where is the following located?
Yellow spot
Name the following:
Three layers of the eye ball.
Differentiate between members of the following pair with reference to what is asked in the bracket.
Aqueous humour and vitreous humour (location).
