Uveitis Flashcards
(145 cards)
What does ACAID stand for?
Anterior Chamber- Associated Immune Deviation
-Affords the immune privilege of the internal eye
First identified association between HLA genes and human disease?
HLA-B27 and Anterior Uveitis
STRONGEST association between HLA genes and human disease ever described (224x risk)
HLA-A29 and Birdshot Chorioretinopathy
Birdshot Chorioretinopathy: associated HLA subtype?
HLA-A29 (âABI the birdâ)
HLA-B27: associated ophtha disease?
Acute Anterior Uveitis: Ankylosing Spondylitis and Reiterâs Syndrome (âBinugBoG na Reiterâ)
HLA-B51/B5: associated ophtha disease?
Behçetâs Disease (âBEA Behçetâ)
Vogt-Koyanagi-Harada Syndrome, Sympathetic Ophthalmia: associated HLA subtype?
HLA-DR4: (âDR. 4 Vicky Soâ)
Specialized dendritic cells in the Conjunctiva
Langerhans Cells
Hypersensitivity Type 1: Immediate/IgE-mediated diseases
Seasonal Allergic Conjunctivitis, Giant Papillary Conjunctivitis, Vernal Keratoconjunctivitis, Atopic Keratoconjunctivitis
Hypersensitivity Type 2: Cytotoxic diseases
Moorenâs Ulcer, Mucous Membrane Pemphigoid
Hypersensitivity Type 3: Immune Complex-mediated diseases
Stevens-Johnson Syndrome, Sjogrenâs Syndrome, Peripheral Ulcerative Keratitis, Scleritis
(Triple S PUK)
Hypersensitivity Type 4: Delayed Hypersensitivity diseases
Giant Papillary Conjunctivitis, Vernal Keratoconjunctivitis, Atopic Keratoconjunctivitis, Sympathetic Ophthalmia, Phlyctenulosis, Contact Dermatoblepharitis, Graft Rejection
Hypersensitivity Type 5: Stimulatory diseases
Thyroid-related Eye Disease
Acute course
Sudden-onset and limited duration
Recurrent course
Repeated episodes separated by periods of inactivity WITHOUT treatment ⼠3 months in duration
Chronic course
Persistent Uveitis with relapse in < 3 months after DISCONTINUING treatment
Worsening activity
2-step increase in level of inflammation OR
increase from Grade 3+ to 4+
Improved activity
2-step decrease in level of inflammation OR decrease from Grade 1+ to 0
Anterior Chamber Cells Classification
Marker of activity
0: <1
0.5+/trace: 1-5
1+: 6-15
2+: 16-25
3+: 26-50
4+: >50
Anterior Chamber Flare Classification
- Not a marker of activity
- Protein transudation due to breakdown of the B-O-B
0: None 1+: Faint 2+: Moderate (Iris and Lens details CLEAR) 3+: Marked (Iris and Lens details HAZY) 4+: Intense (Fibrin or Plasmoid Aqueous)
Vitreous Flare Classification
0: None
1+: Hazy RNFL details (Clear details of the Optic Disc and Vessels)
2+: Hazy details of the Optic Disc and Vessels
3+: Only the Optic Disc is visible
4+: Optic Disc NOT visible
Granulomatous Morphology
What size of KP?
Nodules?
Severity?
- Large mutton fat KPs
- With Busacca, Koeppe and Berlin nodules
- Usually chronic and severe
Large and mutton-fat keratic precipitates are made up of what?
Macrophages and Giant Cells
Infectious etiologies of granulomatous uveitis
TTT Fudge Lasang Herpes Siya
TB, Syphilis, Toxoplasma, Toxocara, Herpes, Fungal, Leprosy