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8 Cards in this Set
- Front
- Back
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P. Aeruginosa
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(Exotoxin A, Exoenzymes, Biofilms) Rapid onset 12-48hrs with hypopyon, poss progression to perforation/blindness; common reservoir is homemade contact lens solution/H2O
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Bacillus Cereus
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(g+ rod with spores) Rapid Onset 12-48hrs, COMPACT LESIONS with hypopyon, Has Cereulosin and P-Lipases for mucosal breakdown and corneal attachment; can be found in Soil/H2O poss progression to perforation/blindness;
Dx: B-Heme |
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Keratitis
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Corneal Inflamation, Pain/FB Sensation, no discharge, Hypopyon= Leukocyte infiltration (pus in ant chamber), normally needs defect to get in
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Aspergillis/Fusarium
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(Monomorphic Fungi) Very slow Onset weeks-months Fuzzy edges and ulceration, increased risk with ImC/Steroids, found in water/soil/Contaminated Contact lens solution; Has Phospholipase; Can progress to perforation/blindness.
Dx: Hyphae on Fundascopic exam, KOH-MYC-SBA |
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Loa Loa
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(Filiary Nematode) Aquired from Mango Fly bite, no vision loss but painful Cutaneous swellings
Dx: Eosinophilia, Filiary in blood |
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"River Blindness" - Onchocerca Volvulus
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(Filiary Nematode) Aquired by black fly bite in Africa/Central and South America, causes punctuate painful skin lesions and blindness due to inflammatory damage
Dx: Skin Snips |
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Acanthaamoeba Castelani
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(Amoeba); Weeks to Months; Ring of infiltrates that progress to total opacity Aquired from warm water, poss contaminated contact lenses.
Dx: DFA/Biopsy Tx: Debridement |
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HSV
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(Herpesviridae-ds DNA +env) Dendritic Ulcers that progress to corneal ulcers/blindness; Lifelong infection that may be reactivated; Most common corneal blindness in US;
Dx: PCR/ELISA |
