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LAZY
EYE
What is
Lazy Eye or amblyopia?
Amblyopia (lazy
eye) is a condition where one has poor vision because it has
failed to develop properly from an early age. 2 - 5% of all
children have this condition.
What
causes a lazy eye?
In amblyopia,
one eye fails to develop properly. Usually this is because
of an underlying problem, such as a turned eye or
uncorrected refractive error. Over time, the eye loses its
ability to compensate for its underlying problem and the
brain decreases its control and usage of the "lazy
eye". This results in permanently reduced vision in the
lazy eye.
What
problems might a person with a lazy eye experience?
A true lazy eye
will result in decreased vision in one eye only. This will
make certain tasks, such as judging distances, and depth
perception difficult.
In addition,
because a person with a lazy eye is relying on only one eye
for almost all vision, they must be very cautious about the
possibility of damage to this eye.
Who is
at risk of developing a lazy eye?
Almost all lazy
eyes develop between birth and age 6. Lazy eyes can develop
relatively quickly, and must receive treatment as soon as
possible to avoid the damage becoming more permanent. A
child will have a much higher risk of developing a lazy eye
if there is a family history of lazy eyes or turned eyes.
How will
I know if I my child has a lazy eye?
In many cases,
it is very difficult to tell if a child has a lazy eye,
because the 'good' eye compensates for the slowly
deteriorating lazy eye. In more severe cases, an obvious
turned eye develops. Other symptoms to look for include:
- Clumsiness
- Poor vision
- A difference in eye
appearance in photographs taken with a flash
What
should I do if I think my child might have a lazy eye?
You should
arrange for your baby, infant, or child to have an eye
examination with your local Optometrist or Ophthalmologist.
Lazy eyes can be detected at a very early age, and it is
important not to delay detection.
Your Optometrist
will advise you if you have developed macula degeneration,
and if so, will be able to refer you to an eye specialist
for treatment.
What
treatment options do I have if my child has a lazy eye?
Most cases of
lazy eye require one or more of:
- Glasses to bring the eye
back to a normal level of focus
- Patching of the good eye,
to encourage the lazy eye to work
- Eye exercises to stimulate
the lazy eye, and make it work in conjunction with the
good eye.
In many cases, all three
techniques are required to correct the problem, and in some
cases, surgery is required to straighten the eyes.
It is important that lazy eye
is treated whilst the child is young, and the visual system
is still developing. Once the child reaches the age of 6-8,
there is very little that can be done. If the lazy eye is
treated later in life, the brain cannot interpret the images
effectively, and the picture appears blurred.
Can lazy
eye be cured?
Provided that
the lazy eye is detected early, there is a good prognosis
for lazy eye to be nearly completely fixed.
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