NEUROLOGY
VISUAL FIELD DEFECTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A person uses a lens of power + 3 D to normalize vision. Near point of hypermetropic eye is
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1.66 m
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0.33 m
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0.66 m
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1 m
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Explanation:
Detailed explanation-1: -We are given the power of the lens, which is +3D. Conventionally, the object distance is taken as negative. Hence the near point of the hypermetropic eye is at 100cm or 1m from the eye. So, the correct answer is “Option A”.
Detailed explanation-2: -Best Answer The eye defect called Hypermetropia is corrected by using a convex lens. Thus, the power of convex lens required is +0.3 diopters.
Detailed explanation-3: -What is the near point of a normal eye and a hypermetropic eye ? The near point of a hypermetropic eye is 75 cm.
Detailed explanation-4: -The near point of hypermetropic eye is 75 cm from the eye.
There is 1 question to complete.