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The eye
is a hollow, fluid-filled, 3-layered ball, the outer
layer is the sclera,
a tough coat, the
innermost is the retina,
the thin light-gathering layer,
and the middle layer is the
Uvea.
The Uvea is made up of the
iris, the ciliary body
and the choroid (see
diagram). When any part of the uvea becomes inflamed
then it is called Uveitis.
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The Uvea is made up of different parts.
So if the iris is
affected, the condition and its
treatment could be totally different to
when the choroid
is affected.
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The inflammation in the Uvea very often
affects other parts of the eye such as
the retina
and so a variety of other problems can
be present to complicate the picture.
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Next there are a large number of medical
conditions where Uveitis is a feature
amongst the other symptoms of the
disease. e.g.
Behcet’s Disease, Sarcoidosis
and
Toxoplasmosis, to name just three
of them.
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