GK
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which among the following kinds of lenses are used to treat Astigmatism?
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Convex Lens
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Concave Lens
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Bifocal Lens
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Cylindrical
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Explanation:
Detailed explanation-1: -To correct the problem of astigmatism a cylindrical lens power is used. It is used to correct the difference between the powers of the two principal meridians of the eye. So, it can be removed by using a lens which is cylindrical.
Detailed explanation-2: -Cylindrical lenses are used to focus or expand light in a variety of laser and light-based equipment for applications, such as laser scanning optical metrology systems, laser alignment and inspection tools, and laser additive manufacturing and laser processing equipment.
There is 1 question to complete.