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Uveitis
What are the symptoms?
There are many types of uveitis and even several different types of
cause.
Uveitis may be divided into two main types, based on the part of the eye affected:
This is a very simple way of categorising uveitis. It must be stressed that there are many sub types and patients may suffer both anterior and posterior (panuveitis). Uveitis may also be one feature of a wider medical condition such as sarcoidosis, toxoplasmosis or juvenile idiopathic arthritis (see entry, Arthritis (Juvenile Idiopathic)).
There is a lack of good data concerning vision loss in uveitis. This can be explained by firstly, there are many, quite different types of uveitis, and, secondly, there are different ways in which the vision may be affected by uveitis. It must be said that many people, especially those with acute anterior uveitis, will not lose any vision. However uveitis, particularly posterior uveitis, may cause significant vision loss. Uveitis typically affects people of working age and may also affect very young children.
Apart from vision loss resulting directly from the effects of the inflammation, the most likely means of losing vision are through the more indirect complications of uveitis, including: cataract, raised intraocular pressure (leading to glaucoma), macula oedema and vitritis.
Background
| What are the causes? 
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