UVEITIS
UVEITIS
- Uveitis refers to the inflammation of uveal tissue.
ANATOMICAL CLASSIFICATION
1. Anterior uveitis:
- It is inflammation of the uveal tissue from iris upto pars plicata of ciliary body.
Subdivided into:
- Iritis, in which inflammation predominantly affects the iris.
- Iridocyctitis in which iris & pars plicata part of ciliary body are equally involved.
- Cyclitis, in which pars plicata part of ciliary body is predominantly affected.
2. Intermediate uveitis:
- includes inflammation of the pars plana & peripheral part of the retina & underlying ‘choroid’.
- It is also called ‘pars planitis’.
3. Posterior uveitis:
- It refers to inflammation of the choroid (choroiditis).
- There is associated infammatory of retina & hence the term ‘chorioretinitis’ is used.
4. Panuveitis:
- It is inflammation of the whole uvea.
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Causes of Anterior Uveitis |
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AUTOIMMUNE |
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INFECTIONS |
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MALIGNANCY |
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OTHER |
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Causes of Posterior Uveitis (Chorioretinitis) |
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INFECTIOUS
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NON INFECTIOUS
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CLINICAL CLASSIFICATION OF UVEITIS
1. Acute uveitis:
- Sudden symptomatic onset & the disease lasts for about six weeks to 3 months.
2. Chronic uveitis:
- It frequently has an insiduous & asymptomatic onset.
- Persists longer than 3 months to even years & is usually diagnosed when it causes defective vision.
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NON-GRANULOMATOUS UVEITIS |
GRANULOMATOUS UVEITIS |
ACUTE
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ACUTE
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CHRONIC
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CHRONIC
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Exam Important
- Anterior uveitis involve Iris and ciliary body.
- Uveitis is caused by T.B., Staphylococcus,Streptococcus.
- Commonest parasitic cause of uveitis is Toxaplasma.
- Most common cause of anterior uveitis associated with Ankylosing spondylitis.
- Most common etiological variety of uveitis is Allergic.
- Recurrent non-granulomatous uveitis is seen in Posner-Schlossman syndrome.
- Granulomatous uveitis with involvement of parotid gland is seen in Sarcoidosis.
- HLA-B5 → Uveitis in Behcet’s disease.
- Anterior uveitis is most commonly associated with HLA B 27.
- Anterior uveitis is commonly associated with Psoriasis, Reactive arthritis & Ankylosing spondylitis.
- The Uveitis associated with vitiligo & auditory defects occurs in Vogt-Koyanagi syndrome.
- The investigation used in evaluation of anterior uveitis → HLA B 27, X-ray of sacroiliac joint & TORCH agents.
- The investigation used in evaluation of posterior uveitis → Mantoux test.
Don’t Forget to Solve all the previous Year Question asked on UVEITIS
