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प्रश्न
Vision defect that increases distance between the lens of the eye and retina of the eye is termed as myopia.
विकल्प
Right
Wrong
उत्तर
Vision defect that increases distance between the lens of the eye and retina of the eye is termed as myopia- Right
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संबंधित प्रश्न
Draw labelled diagrams of the following: Eye
How does the eye regulate the amount of light that falls on the retina?
A person got his eyes tested by an optician. The prescription for the spectacle lenses to be made reads :
Left eye : +2.50 D
Right eye : +2.00 D
Which lens bends the light rays more strongly?
How does the eye adjust to take account of an increase in brightness?
Give the scientific names of the following parts of the eye:
muscles which change the shape of the eye-lens.
Give the scientific names of the following parts of the eye:
a hole in the middle of the iris.
Fill in the following blank with suitable word:
The part of eye sensitive to light is...................
Fill in the following blank with suitable word:
The part of eye which alters the size of the pupil is............
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?
How does the eye adjust itself to deal with light of varying intensity?
What shape are your eye-lenses:
when you look at a distant tree?
After testing the eyes of a child, the optician has prescribed the following lenses for his spectacles:
Left eye : + 2.00 D
Right eye : + 2.25 D
The child is suffering from the defect of vision called:
(a) short-sightedness
(b) long-sightedness
(c) cataract
(d) presbyopia
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
A student sitting on the last bench in the class cannot read the writing on the blackboard clearly but he can read the book lying on his desk clearly. Which of the following statement is correct about the student?
(a) The near point of his eyes has receded away.
(b) The near point of his eyes has come close to him.
(c) The far point of his eyes has receded away.
(d) The far point of his eyes has come closer to him.
Which of the following have a wider field of view?
(a) Animals having two eyes on the opposite sides of their head.
(b) Animals having two eyes at the front of their head.
State whether the following statement is true or false:
Rabbit has eyes which look sideways.
Name two animals having eyes:
one the sides of the head.
Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.
Which of these persons cannot donate eyes?
With both eyes open, a person's field of view is about:
(a) 90°
(b) 150°
(c) 180°
(d) 360°
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Cones : Iodopsim :: Rods : ______.
Mention if the following statement is true (T) or false (F) Give reason.
Sometimes medicines dropped into the eyes come into the nose and even throat
What is a lacrimal gland?
Mention the characteristics of the image that falls on the retina of the eye.
Sometimes you remember a vivid picture of a dream you saw. What is the role of your eyes in this experience?
Name the muscles of the eye responsible for the power of accommodation.
What is the function of iris and the muscles connected to the lens in human eye?
What is a Lachrymal gland?
Give Technical Term:
The adjustment of the eye in order to obtain a clear vision of objects at different distances
Choose the Odd One Out:
Draw a scientifically correct labelled diagram of a human eye and answer the questions based on it:
- Name the type of lens in the human eye.
- Name the screen at which the maximum amount of incident light is refracted?
- State the nature of the image formed of the object on the screen inside the eye.
In a relaxed state, the focal length of healthy eyes is _______.
Write the name.
The part of human eye that transmits electrical signals to the brain.
Write an Explanation.
Power of accommodation
A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?
 |
 |
 |
 |
| (A) | (B) | (C) | (D) |
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 |
Write in proper sequence the names of all the parts of the human eye through which the light rays coming from an object pass before they form an image on the retina.
The thin, transparent extension of sclerotic layer found in front of the lens is ______.
