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प्रश्न
Define the following:
Yellow spot
उत्तर
Yellow spot - It is the region of best vision where more cone cells are present.
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संबंधित प्रश्न
Name the part of the eye:
on which the image is formed.
Define the term "power of accommodation" of human eye.
Ciliary muscles of human eye can contract or relax. How does it help in the normal functioning of the eye?
Refraction of light in the eye occurs at:
(a) the lens only
(b) the cornea only
(c) both the cornea and the lens
(d) the pupil
How much is our field of view:
with both eyes open?
The animal which does not have eyes that look sideways is:
(a) Horse
(b) Chicken
(c) Lion
(d) Fish
With both eyes open, a person's field of view is about:
(a) 90°
(b) 150°
(c) 180°
(d) 360°
Name the following:
Short sightedness.
Define the following:
Blind spot
Give the main function of the following:
Retina
Choose the correct answer :
The rods and cones of a vertebrate retina function is to _________
Answer the following question.
Write the structure of eye lens and state the role of ciliary muscles in the human eye.
Name the following:
The part of the eye responsible for change in the size of the pupil.
When light rays enter the eye, most of the refraction occurs at the ____________.
The coloured portion of the eye is the ______.
With neat, labeled diagram describe the structure of retina of eye.
| 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 accomodation |
Which of the following is responsible for the adjustment of the size of pupil?
