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प्रश्न
Draw labelled diagrams of the following: Eye
Sketeh and label anatomical structure of human eye
Draw the neat and labelled diagram of the anatomy of ‘human eye
उत्तर १
उत्तर २
संबंधित प्रश्न
Write the function of the following part of the human eye: crystalline lens
Explain the following:
Mechanism of generation of light-induced impulse in the retina.
Describe the anatomy of the human eye.
Out of rods and cones m the retina of your eye:
which work in dim light?
What is the:
near point of a normal human eye?
Give the scientific names of the following parts of the eye:
carries signals from an eye to the brain.
A person walking in a dark corridor enters into a brightly lit room:
State the effect on the pupil of the eye.
What is presbyopia? Write two causes of this defect. Name the type of lens which can be used to correct presbyopia.
fill in the following blank with suitable word:
A person is short-sighted if his eyeball is too............Spectacles with a .............lens are needed. A person is long-sighted if his eyeball is too............Spectacles with a ................lens are needed. These focus light rays exactly on to the..........
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
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.
Mention, where in living organism is the following located and state their main function:
Fovea centralis
Name the following:
Short sightedness.
Write whether the following is true or false:
Rods are the receptor cells in the retina of the eye sensitive to dimlight.
Choose the correct answer.
Rods are receptor of ______________
What is a Lachrymal gland?
Name the following:
The region in the eye where the rods and cones are located.
For a normal human eye the near point is at _______.
Complete the paragraph by choosing the right options given below.
(minimum, near point, 25 cm, farthest, farthest distance, far point)
The _______ distance of an object from a normal eye, at which it is clearly visible without stress on the eye, is called the minimum distance of distinct vision. The position of the object at this distance is called the _______ of the eye, for a normal human eye, the near point is at _______. The _______ distance of an object from a human eye, at which it is clearly visible without stress on the eye is called _______ of distinct vision. The position of the object at this distance is called the _______ of the eye.
Draw the struture of human eye and label its parts.
In a myopic eye, the image of the object is formed
A student sitting on the last bench can read the letters written on the blackboard but is not able to read the letters written in his text book. Which of the following statements is correct?
The change in the focal length of an eye lens in human beings is caused by the action of ______.
Match the following:
| Column - I | Column - II |
| 1. Retina | a. Pathway 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 | f. Power of accommodation |
Match the following:
| Column - I | Column - II | ||
| 1 | Retina | a | pathway 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 |
Name the following:
Kind of retinal cells sensitive to dim light.
Name the following:
Two pigments of the sensory cells.
