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25 Cards in this Set
- Front
- Back
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neurotropic viruses have an affinity for?
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sensory ganglion
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What is the most common cause of cornea derived blindness in developed nations?
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HSV-1
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Blepharoconj. is a primary infection manifestation of what infection?
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HSV
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Recurrent HSV shows itself as?
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epithelial keratitis
stromal/endothelial keratitis |
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T/F
blepharoconj. heals without scarring |
true
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How is it mistaken for adenoviral conj.?
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both are follicular
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What are key features of Primary HSV infection?
a. lid vesicles b. conj. dendrites c. keratitis very common d. unilateral |
a. lid vesicles
b. conj. dendrites d. unilateral |
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Epithelial recurrant HSV infections show what two types of ulcers?
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dendritic and geographic
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What are two types of stromal and endothelial keratitis due to HSV?
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disciform and necrotizing
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T/F
in epithelial keratitis virus cells are actively replicating on the corneal surface |
true
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T/F
subsequent episodes of epithelial keratitis due to HSV are sometimes painless therefore you must look for other symptoms that indicate HSV infection. |
true
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epithelial keratitis is usually bilateral or unilateral?
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unilateral
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What are dendritic ulcers secondary to?
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immunocompromise
topical steroids longstanding untreated ulcers |
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Stomal/endothelial keratitis has to do with _____ mediated response to ________viral particles, due to HSV.
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immune, nonreplicating
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What form of recurrent HSV is most common?
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endothelitis
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What is a major cause of decreased vision associated with HSV?
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permanent scarring due to stromal edema
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What is diagnostic of stromal/endothelial keratitis?
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keratic precipitates
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Which has more inflammation necrotizing or disci form keratitis?
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necrotizing
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T/F
In necrotizing keratitis there are live viral particles in the corneal stroma. |
true
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What is necrotizing keratitis frequently associated with?
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uveitis and trabeculitis that may lead to glaucoma
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"mutton fat" indicates?
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keratouveitis
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What is "mutton fat"?
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keratic precipitates on endothelium
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Keratouveitis is usually immune mediated, but may be secondary to release of live virus from where?
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sympathetic nerves
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What can keratouneitis lead to?
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synechia
cataracts glaucoma |
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Which is the most threatening to least threatening.
dendrite geographic necrotizing disciform |
necrotizing
geographic disciform dendrite |
