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प्रश्न
Give Technical Term:
Name the part of the retina on which an object is focused for the clearest vision.
उत्तर
Yellow spot
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संबंधित प्रश्न
The optical prescription for a pair of spectacles is :
Right eye : −3.50 D
Left eye : −4.00 D
Are these lenses thinner at the middle or at the edges?
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?
Fill in the following blank with suitable word:
The part of eye which alters the size of the pupil is............
State whether the following statement is true or false:
Rabbit has eyes which look sideways.
Explain clearly why, a person who has lost the sight of one eye is at a disadvantage compared with the normal person who has two good eyes.
Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.
Which of these persons can donate eyes?
Sometimes you remember a vivid picture of a dream you saw. What is the role of your eyes in this experience?
State the function of each of the following parts of the human eye:
(i) Cornea
(ii) Iris
(iii) Pupil
(iv) Retina
Millions of people of the developing countries are suffering from corneal blindness. This disease can be cured by replacing the defective cornea with the cornea of a donated eye. Your school has organised a campaign in the school and its neighbourhood in order to create awareness about this fact and motivate people to donate their eyes after death. How can you along with your classmates contribute in this noble cause? State the objectives of organising such campaigns in schools.
Name the following:
Short sightedness.
Answer the following question.
Trace the sequence of events Whichoccur when a bright light is focused on your eyes.
Name the following:
The region in the eye where the rods and cones are located.
Why the human eye is compared with camera?
Which of the following statements is correct regarding rods and cones in the human eye?
The coloured portion of the eye is the ______.
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 |
State the functions of the following:
Ciliary muscles
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.
Name the following:
The circular opening enclosed by iris.
An aperture that controls the passage of light into the eye is ______.
Name the following:
Three layers of the eye ball.
