Question

astigmatism frm a human eye can ve removed by..?​

Answer 1

Answer:

Spherical lens power is used to correct near sightedness or far sightedness, whereas astigmatism requires an additional "cylinder" lens power, to correct the difference between the powers of the two principal meridians of the eye. So, Astigmatism for a human eye can be removed by using cylindrical lens.

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Answer 2

Explanation:

Astigmatism is a refractive error, it's simply a problem with how the eye focuses light. It can be can be corrected with eyeglasses, contact-lenses or refractive surgery. Spherical lens power is used to correct near sightedness or far sightedness, whereas astigmatism requires an additional "cylinder" lens power, to correct the difference between the powers of the two principal meridians of the eye.

So, Astigmatism for a human eye can be removed by using cylindrical lens

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