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There are many technical terms for problems of the eye functioning. Many
sound like horrible diseases, but don't let them frighten you. Most are problems
with efficiency and can be trained with therapy.
- Convergence Insufficiency or Excess
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When an object is getting closer to you, your eyes have to
converge to see it. Converge means to move the eyes in towards each
other.
- Accommodative Dysfunction
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Focusing is the more common name of this category. The closer
something is to your eyes, the more you need to focus. Likewise, the
further the object the less you need to focus.
- Divergence Insufficiency or Excess
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This is the opposite of Convergence. Divergence means to move the
eyes out away from each other and usually occurs when looking at an
object moving further away.
- Ocular-motor Dysfunction
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Eye movements use the Ocular-Motor muscles. Reading, sports,
balance, depth perception, and virtually everything requires good eye
movements.
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