wat is d difference between presbyopia and hypermetropia? Give as many points as possible.

You may refer to the answer provided by your friends divya and Tabish

@ divya and Tabish....Good work..Keep posting!

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 hyperopia and hypermetropia is same

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 What is hyperopia? Commonly referred to as farsightedness, this condition allows objects in the distance to be viewed clearly, while objects close-up are blurry. Common tell-tale signs include squinting, eyestrain, and near objects appearing blurry. Sometimes, headaches may occur when focusing on near objects (during activities such as reading or sewing) for an extended period of time. The condition of hyperopia is usually present at birth and tends to run in families through genetics.
 
What is presbyopia? Presbyopia, on the other hand, is a natural part of aging. This occurs when the lenses in the eye thicken and lose their elasticity, and the muscles surrounding the lens weaken. This condition causes the decline of vision and the decreasing of focus, especially on near objects. Common symptoms include blurred vision (which often worsens in dim light or when you are tired), eyestrain, and headaches. Presbyopia usually emerges around age 40 and progresses through age 60.

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:)

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 kya hua ... aj tumhari tabiyat kharab ho gyi h

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kyun 

nhi to!

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HYPERMETROPIA - 

  • hypermetropia is long sightedness.
  • a person can only see far off objects clearly, but not nearby objects.
  • near point becomes more than 25 cm
  • image is formed behind the retina
  • can be corrected using convex lens.
  • it is caused by shortening of the eyeball or due to long focal length

PRESBYOPIA -

  • The person can neither see far off objects clearly nor near by objects.
  • far point reduces and near oint increases
  • can be corected with bifocal lens
  • usually happens in old age due to weakening of cilliary muscles and loss of flexibility of eye lens
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hypermetropia is longsightedness and used to wear convex lens to correct whereas in presbyopia bi focal lns are used.

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