Infectious Uveitis Flashcards
stellate KP
HSV, VZV, Fuchs
chronic, unilateral anterior uveitis with irregular, slightly dilated pupil +/- iris atrophy
HSV and VZV
infectious anterior uveitis with high IOP
HSV, VZV, toxoplasmosis (cause trabeculitis)
acute unilateral vision loss. discrete foci of retinal necrosis involving peripheral retina that rapidly spread circumferentially, + vitritis + occlusive retinal arteriolitis +/- optic neuritis, scleritis, eye pain. otherwise healthy patient
ARN
progressive patchy outer retinal whitening, without vitritis, iritis, or vasculitis in immunocompromised patient? most common cause?
PORN. VZV (patients often w/ HIV)
salt and pepper fundus
rubella
headlight in fog fundus appearance (hazy vitritis overtop white retinal lesion)
toxoplasmosis
tx of herpetic uveitis
systemic antivirals, topical steroids (may need very long taper)
clinical variants of CMV retinitis
fulminant (+ hemorrhage and edema), granular (no hemorrhage or edema), frosted-branch (perivasculitis)
most common ocular manifestation of AIDS
HIV retinopathy
extraocular manifestations of congenital CMV
fever, thombocytopenia, anemia, pneumonitis, hepatosplenomegaly
most common cause of congenital viral infection
CMV
most common ocular manifestations of congenital and acquired EBV
congenital: cataract has been reported
acquired: self-limiting follicular conjunctivitis is most common
Classic features of congenital rubella syndrome? Most common ocular finding? Most common cause of vision loss? What two findings classically do not occur together?
- cardiac malformations, ocular findings (pigmentary retinopathy, nuclear cataract, glaucoma, microphthalmia, strabismus), and deafness.
- pigmentary retinopathy is most common but not visually significant, so cataract and microphthalmia are generally the causes of vision loss.
- classically, cataract and glaucoma do not occur together
presentation of acquired rubella (German measles)? most common ocular findings?
- fever, maculopapular rash that starts on face then spreads to whole body, lymphadenopathy
- conjunctivitis. less commonly keratitis and retinitis
how to differentiate between chorioretinitis from congenital toxoplasmosis v congenital LCMV (lymphocytic choriomeningitis virus)
intracerebral calcifications in LCMV are periventricular while they are diffuse in toxo
- most common ocular manifestations of acquired measles?
- other findings?
- findings in congenital measles?
- keratitis and mild, papillary, nonpurulent conjunctivitis.
- cataract, pigmentary retinopathy
- cataract, optic nerve drusen, diffuse pigmentary retinopathy
unvaccinated 5 year old develops vision loss, behavioral changes, and memory impairment: diagnosis and most common ocular finding
SSPE (subacute sclerosing panencephalitis), which is a rare, late complication of acquired measles. focal macular retinitis and RPE changes
presentation, ocular findings, and FA in West Nile virus
- febrile illness, myalgias, and in rare cases encephalitis. eye pain and redness, photophobia, blurred vision.
- multifocal chorioretinitis with +/- anterior and intermediate uveitis. characteristic linear lesions in midperiphery that follow retinal nerves
- inactive lesions appear targetoid on FA with central hypofluorescence but hyperfluorescence at the border
febrile illness in farmer or slaughterhouse worker + bilateral macular retinitis
Rift Valley Fever
Human T-Lymphocytic Virus Type 1 (HTLV-1) ocular finings. what cell does the virus invade? What else does this virus cause?
- unilateral vitritis, retinal vasculitis, and keratitis among others
- CD4+ T cells, causes adult T cell leukemia/lymphoma
most common mosquito-borne viral disease in? how do patients present?
Dengue fever. fever, petechial rash, bleeding problems form thrombocytopenia, headache, myalgia
most common ocular finding in Dengue fever? additional findings?
- petechial subconj heme
- maculopathy with intraretinal hemorrhages and periphlebitis
Indian immigrant presents with fever, arthralgias, anterior uveitis, pigmented KPs, and posterior retinochoroiditis
Chikungunya fever
4 diagnostic criteria of POHS
punched-out chorioretinal lesions, peripapillary atrophy, CNV, and absence of vitritis
Ohio or Mississippi River Valley
POHS
active form of Histoplasma capsulatum
yeast (not filament)
% chance of recurrent CNV within 5 years if recurrent histo-spots appear in macula? If no recurrent histo-spots?
15%
5%
most common cause of infectious posterior uveitis in adults and kids
toxoplasmosis
common modes of transmission for toxoplasmosis
ingestion of undercooked meat or contaminated water, contact with cat feces, blood transfusion or organ transplant, transplacental