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Question
State the Function:
Cornea
Solution
It covers and protects the iris and allows light rays into the eye.
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RELATED QUESTIONS
Name the part of the eye:
which controls the amount of light entering the eye.
Name two types of cells in the retina of an eye which respond to light.
What changes take place in the shape of eye-lens:
when the eye is focused on a near object?
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
Name the following:
The part of the eye responsible for its shape.
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.
Differentiate between:
Vitreous humour and Aqueous humour.
Differentiate between:
Retina and Choroid.
State the Function:
Aqueous humour
Choose the Odd One Out:
Long answer question
Draw the neat labelled diagram of the Sectional view of the human eye.
Write an Explanation.
Farthest distance of distinct vision
Write scientific reason.
The movie cannot be enjoyed if seat of a viewer is too close to the screen in the cinema.
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.
The image formed on the retina of the human eye is ____________.
Describe the parts in the external structure of the eye.
Select the option with incorrect identification:
Name the following:
The fibres which collectively hold the lens in position.
With reference to human eye answer the question that follow:
Name the part of the eye associated with keeping the lens moist and protecting it from physical shock.
With reference to human eye answer the question that follow:
Name the part of the eye associated with the regulation of the shape of lens.
