Strabismus: Causes, Symptoms, Daignosis, Prevention and Treatment - PowerPoint PPT Presentation

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Strabismus: Causes, Symptoms, Daignosis, Prevention and Treatment

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Strabismus is a visual disorder in which the eyes are misaligned and point in different directions. – PowerPoint PPT presentation

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Title: Strabismus: Causes, Symptoms, Daignosis, Prevention and Treatment


1
Strabismus
2
What is Strabismus?
  • Strabismus is a visual disorder in which the
    eyes are misaligned and point in different
    directions. This misalignment can happen
    partially (intermittent) or all of the time
    (constant). Strabismus is characterized
    according to the direction of misalignment. When
    one of the eye is looking straight ahead, the
    other eye may turn inward (esotropia or
    convergent), outward toward the ear (exotropia or
    divergent), downward (hypotropia) or upward
    (hypertropia).

3
What causes Strabismus?
  • The exact cause of the eye misalignment that
    leads to strabismus is not known yet. However,
    strabismus is certainly more common in families
    with a history of the disorder. Six eye muscles
    control an eye movement is attached to the
    outside of each eye. To focus both eyes on a
    single target, all eye muscles must work together
    with the corresponding muscles of the opposite
    eye. The brain coordinates these eye muscles. It
    is important to understand that it is generally
    not just one eye that is deviated, but rather,
    the eyes are misaligned in relation to one
    another. In essence, both eyes are usually at
    fault, although one eye may appear to be the
    crooked one.

4
What causes Strabismus?
Continue
  • Strabismus can be caused by issues regarding the
    eye muscles, with the nerves that control the eye
    muscles or with the brain, where the signals for
    vision are processed. Strabismus can accompany
    some illnesses such as high blood
    pressure, multiple sclerosis, myasthenia gravis,
    or thyroid disorders.

5
Signs Symptoms of Strabismus
  • Strabismus can mostly be recognized by a casual
    observer. In general, most cases of strabismus
    are first seen by a parent or the childs
    pediatrician before an ophthalmologist. Children
    should be monitored closely during infancy and
    the preschool years to detect potential eye
    problems, particularly if a relative has
    strabismus. Symptoms of strabismus include
  • Eyes which looks misaligned
  • Eyes which did not appear to move together
  • Blinking or squinting of eye, especially in
    bright sunlight

6
Signs Symptoms of Strabismus
Continue
  • Tilting the head to look at things
  • Faulty depth perception
  • Double vision

7
Treatment of Strabismus
  • The treatment goal for strabismus is to preserve
    vision, to straighten the eyes, and to restore
    3-dimensional vision. Treatments differentiate,
    depending on the type and cause of strabismus. If
    your childs strabismus has caused amblyopia,
    treatment will aim at bringing the vision up to
    normal in the lazy eye first.
  • Glasses may help straighten the eyes
  • A small patch can be worn over the preferred eye
    to force the child to use the weaker or
    suppressed eye
  • Eye drops are used to temporarily blur the vision
    of the preferred eye for the same purpose.
    Exercises may be prescribed to strengthen
    specific eye muscles

8
Treatment of Strabismus
Continue
  • This can be done by forcing a child to use the
    weaker eye and improve sight by reinforcing the
    connection between the eye and the
    brain. Surgery on the eye muscles can be
    necessary, especially when glasses are not enough
    to straighten the eyes. Its important to
    understand that strabismus surgery does not
    resolve amblyopia. However, the most of the
    children with strabismus will eventually require
    strabismus surgery to better align the eyes. In
    some cases, surgery can be avoided by using a
    relatively new technique in which a drug
    botulinum is injected into one or more eye
    muscles to temporarily paralyze the muscle.

9
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