a pereson uses lens of power +2D.name the defect of vision he is suffering from
Answers
Answered by
76
If the person uses the lens of power +2 Dioptre (positive )
Then the person is using the Convex lens.
The convex lens is used to correct the Hypermetropia (Far -sightedness)
Hypermetropia is the defect of vision in which a person sees faraway objects clearly but cannot see the nearby objects.
The image is formed behind retina in Hypermetropia.
Causes:
1) The distance between the eye lens and retina decreases on account of either shortening of eyeball or flattening of lens.
2)Weak action of ciliary muscles causes low converging power of lens.
Hope it helps you!
Then the person is using the Convex lens.
The convex lens is used to correct the Hypermetropia (Far -sightedness)
Hypermetropia is the defect of vision in which a person sees faraway objects clearly but cannot see the nearby objects.
The image is formed behind retina in Hypermetropia.
Causes:
1) The distance between the eye lens and retina decreases on account of either shortening of eyeball or flattening of lens.
2)Weak action of ciliary muscles causes low converging power of lens.
Hope it helps you!
obu:
its not myopia
it's Hypermetropia
how can u identify pls tell so i can also do
plzzzzzzzzzzzzzzzzz
simple by its focal length if the focal length is positive convex lens are used and if focal lengh is negative Concave Lens are used
we know convex lens r used to correct Hypermetropia
and Concave for myopia
tq so much
My pleasure
Answered by
7
Answer:
Hypermetropia
Explanation:
He needs a convex lens to recover his far sight because the converging power of his eye has become weak
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