1. Classification of uvietis: 1.Anatomical. 2.Clinical. 3.Etiological.

2. :ِAnatomical
1.Anterior. a.iritis. b.iridocyclitis. 2.Intermediat. (psterior C.B. ,periphral retina, & underlying choroid). 3.Posterior. (choroid and retina posterior to the equator)

4. Clinical:
1.Acute. 2.Chronic.

5. Aetiological:
1.Systemic diseises: a. Spodyloarithropathies b. Inflammatory bowel disease. c.Nephritis. d. Non infectious multisystem diseases. e.diabetes. T.B., Candida, & Herpes Zoster). )2. Infectious: 3. Infestatins (toxplasmsis, Toxocariasis). 4. Idiopathic 50%

6. Antrior u.
Symptoms and Signs: Acute: Pain, photophopia,redness ,decrease visual acuity. Chronic: May be asymptomatic . Injection. . K.Ps. . Cells . Flare. . Iris nodule.

9. Compliactins of ant. Uvietis:
1.Posterior synechia. 2. Cataract. 3. Glaucoma. 4. Cyclitic membrane.

11. Intermediate U.
Early: floaters. Late: decrease V.A. (vitiritis) Complications: 1.C.M.O. 2.Cataract. 3.Cyclitic membrane. 4. Tractional R.D.

12. Posterior uvietis
1.Floatres. 2.Decrease V.A. (C.M.O.). Signs: Vitiritis, retinitis, and vasculitis Complications: 1. C.M.O. 2. Macular ischemia. 3.Epiretinal membrane. 4. Vascular occlusion. 5.Tractinal R.D. 6.Optic neuropathy.

13. Investigations:
1.X-ray. 2. Skin test. 3.Serum tests. 4.HLA typing.

14. treatment
1.Medriatics. 2.Steroids (topical, periocular, systemic, Intraviteal). 3.Immunosupressive agent (Azathioprine or Methotrixate).