Amblyopia

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Amblyopia
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Amblyopia

• Amblyopia is reduced vision that is caused by
  disruption of the normal development of vision
  during childhood.At birth, a babys visual
  system is not yet fully developed. Development of
  the visual system in infancy and early childhood
  requires focused and aligned images being sent
  from both eyes to the brain.When an eye
  condition causes blurry or distorted vision in
  one eye, the brain can learn to ignore the image
  from the affected eye. This lack of proper visual
  stimulation means that the nerve connections
  between that eye and the brain dont develop
  properly and results in amblyopia.

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What eye conditions can cause amblyopia?

• Strabismic amblyopiaStrabismus (sometimes
  called a squint) is when the eyes point in
  different directions. In adults, this generally
  results in double vision or blurred
  vision.Though, to avoid this, a child's brain
  is able to suppress the image from the eye thats
  not straight, causing that eye to become
  amblyopic or 'lazy'. This is known as strabismic
  amblyopia.Refractive amblyopiaWhen the cause
  of amblyopia is refractive errors (such as
  long-sightedness, short-sightedness or
  astigmatism), it is called refractive
  amblyopia. 

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What eye conditions can cause amblyopia?
Continue

• When there is a significant difference in the
  refractive error between the eyes such as one
  eye being much more long-sighted than the other
  the brain suppresses the image from the weaker
  eye, causing it to become amblyopic. A high
  refractive error in both eyes (such as both eyes
  being very long-sighted) may cause amblyopia in
  both eyes.Deprivation amblyopiaLess commonly,
  amblyopia can be the result of eye disorders such
  as a congenital cataract (cataract present at
  birth), corneal scar, drooping eyelid (ptosis) or
  a tumor of the eye. These kind of conditions
  deprive the affected eyes of normal visual
  experience, which can significantly affect the
  development of the visual system.This type of
  amblyopia is called deprivation amblyopia, and is
  often the most severe type.

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How is amblyopia diagnosed?

• Amblyopia can usually be diagnosed by a full
  examination of the eyes. If you suspect that
  there is any problem with your childs eyes, you
  should consult your doctor. A child is never too
  young to have their eyes examined.Because of
  the importance of early detection, eye checks are
  recommended for infants and children as part of
  their routine health checks. All children should
  routinely have their eyes tested before school
  age.This is especially important for conditions
  where the eyes look normal but in fact have
  refractive errors or other problems that are
  preventing the normal development of vision.

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Symptoms of amblyopia

• Children with amblyopia are often too young to
  describe their symptoms. Parents might notice
  symptoms of an underlying eye problem or signs of
  reduced vision in one eye.You may notice
• your child covering one eye
• your child squinting or shutting one eye
• your child holding objects closely to try to see
  them clearly
• One eye does not look in the same direction as
  the other (crossing in or turning outwards).
• Older children may notice they have problems
  with vision in one eye or with depth
  perception.

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Treatment for amblyopia

• The treatment for amblyopia usually involves
• The treatment of the underlying cause and
• By using eye patches or eye drops to strengthen
  the lazy eye.
• The sooner amblyopia is treated, the better the
  chance that your child will regain normal vision.
  Though, studies have depicted that amblyopia
  treatment can also help improve vision in older
  children.

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