$A$ person is suffering from the defect astigmatism. Its main reason is

  • A
    Distance of the eye lens from retina is increased
  • B
    Distance of the eye lens from retina is decreased
  • C
    The cornea is not spherical
  • D
    Power of accommodation of the eye is decreased

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Similar Questions

$A$ person's near point is $50 \, cm$ and his far point is $3 \, m$. The power of the lenses he requires for $(i)$ reading and $(ii)$ seeing distant stars are:

Myopia is due to

To remove myopia (short-sightedness),a lens of power $0.66 \, D$ is required. The far point of the eye is approximately ....... $cm$.

$A$ person has a near point of $50 \, cm$ and a far point of $3 \, m$. What power of lens is required to $(i)$ read and $(ii)$ see distant stars?

Myopia is a defect of the eye due to which a person experiences difficulty in seeing .......

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