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Question
State the Location:
Iris
Solution
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RELATED QUESTIONS
Write the function of the following part of the human eye:- iris
Draw labelled diagrams of the following: Eye
Write short notes on the following: Retina
Match the following:
| Column I | Column II |
| (i) Myopia | (a) Converging power of eye lens becomes low |
| (ii) Hypermetropia | (b) Converging power of eye lens remains the same |
| (c) Converging power of eye lens becomes high |
Why does it take some time to see objects in a dim room when you enter the room from bright sunshine outside?
Explain why, we cannot see our seats first when we enter a darkened cinema hall from bright light but gradually they become visible.
To focus the image of a nearby object on the retina of an eye:
(a) the distance between eye-lens and retina is increased
(b) the distance between eye-lens and retina is decreased
(c) the thickness of eye-lens is decreased
(d) the thickness of eye-lens is increased
Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.
Which of these persons cannot donate eyes?
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
Name the following:
Short sightedness.
Name the following:
The type of lens used for correcting myopia.
Mention, if the following statement is True or False
Cones are the receptor cells in the retina of the eye sensitive to dim light.
Mention, if the following statement is True or False
The least distance of distinct vision for the human eye is 25 cm
State the Function:
Vitreous humour
Why the human eye is compared with camera?
The transparent membrane that keeps the eye moist is ______.
What is ‘white of the eye’?
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 |
Give reason:
Blind spot is considered as 'area of no vision'.
