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प्रश्न
Mention if the following statement is true (T) or false (F) Give reason.
Short-sightedness and hyperopia are one and the same thing
पर्याय
True
False
उत्तर
False
short-sightedness is myopia and hyperopia is long-sightedness.
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संबंधित प्रश्न
Which. of the following has normal vision?
(a) Xc Xc
(b) Xc Y
(c) XC Xc
(d) Xc Yc
What is the principal function of the eye-lens?
Give the scientific names of the following parts of the eye:
a hole in the middle of the iris.
How does this affect the amount of light entering the eye?
What happens to the size of pupil of our eye (i) in dim light (ii) in bright light?
Explain why, when it is getting dark at night, it is impossible to make out the colour of cars on the road.
The animal which does not have eyes that look sideways is:
(a) Horse
(b) Chicken
(c) Lion
(d) Fish
Name the following:
The part of the eye responsible for its shape.
Define the following:
Yellow spot
Differentiate between:
Vitreous humour and Aqueous humour.
Differentiate between:
Yellow spot and Blind spot.
Draw a diagram of the human eye as seen in a vertical section and label the parts which suit the following descriptions relating to the:
(i) photosensitive layer of the eye.
(ii) structure which is responsible for holding the eye lens in its position.
(iii) structure which maintains the shape of the eyeball and the area of no vision.
(iv) anterior chamber seen in front of the eye lens.
(v) outermost transparent layer seen in front of the eyeball.
Mention, if the following statement is True or False
The least distance of distinct vision for the human eye is 25 cm
Complete the following sentence with appropriate Word
The photoreceptor cells of the retina sensitive to colour are:
Write an Explanation.
Farthest distance of distinct vision
Write an Explanation.
Power of accommodation
The black opening between the aqueous humour and the lens is called ____________.
State the functions of the following:
Iris
Name the following:
Capacity of the eye to focus at different distances.
