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In many cases the underlying cause for
uveitis remains undetermined.
It often occurs in association with systemic
diseases like sarcoidosis,
tuberculosis etc. It
can also occur due to
auto-immune reaction to
ocular antigens. In these cases the body
seems to sense some of its own proteins as
“foreign” and develops
an inflammatory response.
In some cases, the cause may be a local invasion of
infectious agents like virus,
bacteria,
fungus or a
parasite (toxoplasma, toxocara).
To delete these possible causes of uveitis, we often
order laboratory tests, x-rays and specialist
consultations. In spite of extensive investigations,
it is quite possible that no clue to the cause of
uveitis is obtained. |
