Classification (infective) Keratitis

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1 classification (infective)

1.1 viral
1.2 bacterial
1.3 fungal
1.4 amoebic
1.5 parasitic





classification (infective)
viral

dendritic corneal ulcer after fluorescein staining under cobalt blue illumination



adenoviral keratitis of 24 year old woman



herpes simplex keratitis (dendritic keratitis). viral infection of cornea caused herpes simplex virus leaves called dendritic ulcer .
herpes zoster keratitis, associated herpes zoster ophthalmicus, form of shingles.

bacterial

bacterial keratitis. bacterial infection of cornea can follow injury or wearing contact lenses. bacteria involved staphylococcus aureus , contact lens wearers, pseudomonas aeruginosa. pseudomonas aeruginosa contains enzymes can digest cornea.

fungal

fungal keratitis (cf. fusarium, causing outbreak of keratitis in 2005-2006 through possible vector of bausch & lomb renu moistureloc contact lens solution)

amoebic

acanthamoebic keratitis


acanthamoeba keratitis





amoebic infection of cornea serious corneal infection, affecting contact lens wearers. caused acanthamoeba. on may 25, 2007, cdc issued health advisory due increased risk of acanthamoeba keratitis (ak) associated use of advanced medical optics (amo) complete moisture plus multi-purpose eye solution.



parasitic

onchocercal keratitis, follows o. volvulus infection infected blackfly bite. these blackfly dwell near fast-flowing african streams, disease called river blindness .




^ tang a, marquart me, fratkin jd, mccormick cc, caballero ar, gatlin hp, o callaghan rj (2009). properties of pasp: pseudomonas protease capable of mediating corneal erosions . invest ophthalmol vis sci. 50 (8): 3794–801. doi:10.1167/iovs.08-3107. pmc 2874894 . pmid 19255155. 
^ epstein, arthur b (december 2007). in aftermath of fusarium keratitis outbreak: have learned? . clinical ophthalmology (auckland, n.z.). 1 (4): 355–366. issn 1177-5467. pmc 2704532 . pmid 19668512. 
^ lorenzo-morales, jacob; khan, naveed a.; walochnik, julia (2015). update on acanthamoeba keratitis: diagnosis, pathogenesis , treatment . parasite. 22: 10. doi:10.1051/parasite/2015010. issn 1776-1042. pmc 4330640 . pmid 25687209. 
^ martín-navarro, m.; lorenzo-morales, j.; cabrera-serra, g.; rancel, f.; coronado-alvarez, m.; piñero, e.; valladares, b. (nov 2008). potential pathogenicity of chlorhexidine-sensitive acanthamoeba strains isolated contact lens cases asymptomatic individuals in tenerife, canary islands, spain . journal of medical microbiology. 57 (pt 11): 1399–1404. doi:10.1099/jmm.0.2008/003459-0. issn 0022-2615. pmid 18927419. 
^ cdc advisory
^ onchocerciasis? . cdc. retrieved 2010-06-28. transmission intense in remote african rural agricultural villages, located near rapidly flowing streams...(who) expert committee on onchocerciasis estimates global prevalence 17.7 million, of whom 270,000 blind. 






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