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प्रश्न
State the Function:
Cornea
उत्तर
It covers and protects the iris and allows light rays into the eye.
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संबंधित प्रश्न
How does the eye regulate the amount of light that falls on the retina?
The optical prescription for a pair of spectacles is :
Right eye : −3.50 D
Left eye : −4.00 D
Which lens has a greater focal length?
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?
What is the:
far point of a normal human eye?
If you walk from a dark room into sunlight and back again into dark room, how would your pupils alter in size? What makes this happen?
An object is moved closer to an eye. What changes must take place in the eye in order to keep the image in sharp focus?
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.
Differentiate between members of the following pair with reference to what is asked in bracket.
Rod and cone cells (pigment contained)
Mention if the following statement is true (T) or false (F) Give reason.
Blind spot is called so because no image is formed on it.
Choose the correct answer.
Aperture controlling passage to light into the eye is ___________
State the Location of:
Lacrimal gland
Long answer question
Draw the neat labelled diagram of the Sectional view of the human eye.
For the normal human eye, the near point is at ___________ cm.
Draw the struture of human eye and label its parts.
What kind of lens is there in our eyes? Where does it form the image of an object?
______ of the eye is comparable to the film of a camera.
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
With reference to human eye answer the question that follow:
Name the part of the eye associated with the regulation of the size of pupil.
