Definition Inflammation of the uveal tract from the iris upto the plars plicata of ciliary body
Classification Iritis Iridocyclitis Cyclitis
Clinical Features Acute: Symptoms more severe Chronic: Signs more severe than signs
Symptoms Pain: Acute Severe Radiates along V1 nerve distribution Worst at night Redness: Photophobia Lacrimation Diminution of vision a.Turbid aqueous e. Sec. glaucoma b.Vitreous exudates f.Ciliary spasm c.Exudates in pupillary area g.Complic . Cat d.CME
Signs Lid Edema
Ciliary Congestion
3. Corneal Signs: Corneal edema d/t toxic endothelitis & increased IOP Keratitis precipitates: Cellular deposits on the corneal endothelium. Distributed in a base down triangular area inferiorly ( Arlt’s triangle) Small, medium, large (mutton fat) Posterior corneal opacities
Keratitic Precipitate
AC Signs: Aqueous Cells and Flare
Anterior Chamber Signs: Aqueous cells Early sign On oblique illum.:3mm long 1mm wide slit with max light and magnifications Grading: 0 :0 cell +_ : 1-5 cell 1+ : 6-10 cells 2+: 11-20 cells 3+ : 21-50 cells 4+ : >50
Anterior Chamber Signs: Aqueous Flare D/t leakage of protein into the AC from the leaky vessels On oblique illum .: a point of beam projected on the iris plane Protein particles seen floating the beam of light: Tyndall phenomenon Marked in NGU Grading: 0 : No flare 1+ : Just detectable 2+: Moderate flare with clear detail view of iris 3+ : Marked flare with iris details not clear 4+ : Intense flare with no view of iris details
Hypopyon : Sterile Pus in AC
AC signs Hyphema : Blood in AC Irregular AC depth d/t synechia Deposits of debris in AC angle Anterior synechia
Exudates in AC Angle
Iris Signs Loss of normal pattern Muddy in color in active stage & hyper/ hypopigmented Iris nodules: Aggregations of lymphyocytes and epitheloid cells.
Koeppe’s nodule; Bussacca’s nodule
Posterior Synechiae : Adhesion of post. Surf. Of iris to Ant. Surf of Lens
Posterior Synechiae : Segmental Annular Total
Sluggish Pupillary Reaction & Miosis
Irregular Pupil: Festooned Pupil
Fibrinous Exudate : Occulsio pupil
Ectropion Pupillae
Lens Signs Pigment dispersion on lens surface Fibrin exudates on lens surface Complicated cataract: Polychromatic lusture Bread crumb appearance
Complicated Cataract
Spill over anterior vitreous inflammation
Complications and Sequelae
Complicated Cataract
Secondary Glaucoma Early glaucoma: In active phase of disease Due to exudates & inflammatory cells in AC angle blocking the TM Decreased aqueous flow leading to increased IOP (Hypertensive Glaucoma)
Differential Diagnosis Causes painful red eye Granulomatous & Non granulomatous Uveitis Etiological D/d
Causes of Red Eye Acute Conjunct ivitis Acute Iridocyclitis Acute Congestive Glaucoma Onset Gradual Usually gradual Sudden Pain Mild discomfort Moderate V 1 n. distribn . Severe Whole V n. distrib . Discharge Mucopurulent Watery Watery Colored haloes +/- -- +++ Vision Unaltered Impaired Severely impaired Congestion Conjunctival Ciliary Ciliary
Causes of Red Eye ( contd ) Acute Conjunct ivitis Acute Iridocyclitis Acute Congestive Glaucoma Tenderness Absent Marked Marked Pupil Normal Reacting Small,irregular Sluggish reacting Dilated, vertically oval & fixed Media Clear Hazy d/t KP,flare & pupillary exudate Hazy d/t corneal edema Anterior chamber Deep Deep/ may be irregular Very shallow Iris Normal Muddy Edematous
Causes of Red Eye ( contd ) Acute Conjunct ivitis Acute Iridocyclitis Acute Congestive Glaucoma IOP Normal Normal usually Markedly raised Constitutional symptom Assoc. Absent Little Prostration & vomiting
Work Up Hematological Examination TLC/DC: Gross idea of inflammatory response of body ESR: r/o Chronic infection Blood sugar: r/o DM Blood Uric Acid: r/o Gout Seological Test: Syphilis, toxoplasmosis & histoplasmosis Test for: AntiAntinuclear Antibodies CRP Rh factor Anti- streptolysin O LE cells
Work Up Urine Examination: For WBC, Pus cells, RBS Culture : r/o Urinary tract infection Stool Examination For Cysts & ova to r/o parasitic infestations. Radiological Investigation CXR,Paranasal sinus, Sacroiliac joints,Lumbar spine. Skin Tests: Tuberculin test, Kveims test & Toxoplasmin test.
Treatment: Non- specific treatment Local therapy Systemic therapy Specific Treatment T/t of Complications
Non-Specific Treatment: Local Therapy Cycloplegics Corticosteroids Broad spectrum antibiotics
Mode of actions of Cycloplegics Relieves pain: Relieves spasm of iris sphincter & ciliary m. Prevents posterior synechiae formation Breaks posterior synechiae Reduces hyperemia & vascular permeability which reduces exudation
2.Corticosteroid: To reduce inflammation Commonly used steroids: Long acting: Dexamethasone Betamethasone Hydrocortisone Prednisolone Triamcinolone Short acting: Fluoromethalone Loteprednol Fluocinolone
Route of administration: Topical: Eye drops or eye ointments 6times a day Anterior subtenon injection For severe cases
Broad spectrum antibiotic Doesn’t have much role in anterior uveitis
Corticosteroids Indication: Intractable anterior uveitis Prednisolone : 1mg/ kgbdwt & taper gradually according to response Side effects: Glaucoma & Cataract
Non- Steroidal Anti-inflammatory Drugs: Used when steroid are contraindicated or not tolerated. Phenylbutazone & oxyphenylbutazone
Immunosuppressives In corticosteroid resistant or intolerant cases In specific inflammations: Behcet’s syndrome Sympathetic ophthalmitis VKH Pars planitis
Specific Treatment Tuberculosis: ATT Parenteral Penicillin:Syphilis HSV: Acyclovir
Treatment of Complication : Inflammatory Glaucoma: Timolol 0.5% BD & T.Acetazolamide 250mg BD Contraindicated are Latanoprost & Pilocarpine . Post-inflammatory Glaucoma(d/t ring synechiea ): Laser iridotomy Complicated Cataract: Cataract sx . After 3mths of quiet period. Retinal Detachment: Anterior vitrectomy Phthisis bulbi Enucleation