Keratitis Flashcards
what is keratitis?
inflammation of the cornea
what are risk factors for bacterial keratitis?
other corneal pathology wearing contacts (swimming, sleeping)
what can bacterial keratitis progress to?
eating eyeball
perforation
presentation of bacterial keratitis
loss of clear appearance of cornea
pus in eye (hypopyon)
diagnosis of bacterial keratitis
corneal scrap for microscopy
management of bacterial keratitis
hourly drops so need to admit through the night
- ofloxacin (4-quinolone)
- gentamicin and cefuroxime
causes of viral keratitis
herpes
adenovirus
presentation of viral keratitis
pain
photophobia
foreign body sensation
herpetic keratitis presentation
all other signs and dendritic ulcer
diagnosis of viral keratitis
look at cornea with slit-lamp
fluorescein dye for dendritic ulcer in herpetic
management of viral keratitis
steroids with acyclovir/ganciclovir as can cause corneal melt and perforation
causes of fungal keratitis
acanthamoeba (pseudomonas aeruginosa)
moraxella
what are risk factors for fungal keratitis
wearing contacts
young
chronic history
those who work outside
presentation of fungal keratitis
extreme pain
more defined hypopyon
diagnosis of fungal keratitis
culture of contact lens
microscopy
