A6 - Uveitis Flashcards
Leucokoria
-associated issues
May have:
- strab
- nystagmus
- diff in eye size
- incr IOP
- ct
- tumor
- decr vision
- APD
Leucokoria
- complete eval including
- tx
- prognosis
B-scan
Radiology
Tx underlying problem
Poor to guarded
Phthisis bulbi
Function has decompensated or gone
Shrinks after trauma, loss of function
Soft, low IOP
B-scan to R/O growths
Not painful
-if becomes, enucleate
Uveitis in children
-who
Females
62% Caucasian
Uveitis in children
-major etiologies (2)
Idiopathic
JRA
Anterior uveitis
-JRA
—what
—uveitis characteristics (general)
Arthritis of at least 6 weeks w/o identifiable cause in children <16 years
Most common cause of ant uv in children
Greater risk in first 4 years after dx
Seen before or after joint symptoms
More aggressive course if interval b/w arthritis and uveitis is short
Anterior uveitis
-JRA
—lab to run
—uveitis characteristics - specific signs/symptoms
ANA
Bilateral Non-granulomatous Fine-medium KP Chronic inflammation leading to: -band keratopathy -posterior synechiae -hypotony -ct -glaucoma
Intermediate uveitis
- what
- app
- assoc condns
Inflamm at vitreous base over CB, p plana, ant vitreous, and peripheral retina
Will see vitreal cells - snow banking in peripheral retina (near ora)
Sarcoidosis TB Syphilis Lyme MS Idiopathic intermediate uveitis (pars planitis)
Posterior uveitis -toxoplasmosis —cause —tissues affected —testing
T. gondii
- cat feces
- undercooked meat/contaminated water
- congenital (TORCH) or acquired
Heart muscle, neural tissue, retina
ELISA
Posterior uveitis -toxoplasmosis —dormant until —systemic infection —treatment
Cyst erupts
Fever, lymphadenopathy, sore throat
Antimicrobials +/- oral steroids
Posterior uveitis
-toxoplasmosis
—ocular manifestation
Retinitis, choroiditis, iritis
Active area of retinal inflamm - thickened, cream-colored, with overlying vitritis in macular scar
Atrophic chorioretinal scar (satellite lesion)
Posterior uveitis
-toxocariasis
—what, cause
—who
Nematode larvae in dog/cat intestines
Ingestion of contaminated soil
Primarily children - avg onset 11.5 years
Posterior uveitis
-toxocariasis
—ocular manifestation
Unilateral
Post pole granuloma, peripheral granuloma, or endophthalmitis
-leukocoria, strab, or decr vision
Posterior uveitis
-toxocariasis
—systemic manifestation
—labs
Not assoc with systemic problems
ELISA
Posterior uveitis
-toxocariasis
—treatment
Observe peripheral lesions
Periocular or systemic steroid for posterior lesions and endophthalmitis
Surgery for retinal traction, ct, glaucoma
*systemic antiparasitic not useful - parasite is already dead