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19 Cards in this Set
- Front
- Back
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Why don't you put steroids into an eye you are unsure of?
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Risk of flaring of dendritic ulcer! (herpes)
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Define keratitis?
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inflammation of cornea
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Features of bacterial conjunctivitis?
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-sticky eye
-start unilat, can become bilat |
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Rx for conjunctivitis?
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-chloramphenicol (chloromycetin) drops 2-4 hrly
-eye r/w if not better in 72hrs |
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Similarity b/w a stye and chalazion?
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-both are infection of glands, just diff ones
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Rx for stye?
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-massage w/ hot compress
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Characteristics of iritis?
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-deep set pain
-assoc w/ H/A, nausea -can have increased ICP (tf DDx is glaucoma) |
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Rx for glaucoma?
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-pilocarpine to constrict pupil, this helps open up angle (in closed angle glaucoma)
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Ix for orbital cellulitis and periorbital cellulitis?
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-head CT -> tells you if there is extension
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Rx for corneal abrasion?
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-chloromycetin drops
-homatropine if severe pain |
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What is a hyphema?
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-blood in ant chamber (can see a fluid level)
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What is Seidel's test?
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-
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Indications for chloramphenicol?
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Marketed
-Infections of the eye and lids due to susceptible organisms Accepted -Prophylaxis after surgery or superficial trauma |
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CI to chloramphenicol?
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Allergy to chloramphenicol
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Adverse effects of chloramphenicol?
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Infrequent:
unpleasant taste Rare: allergy, eg local reactions, angioedema, anaphylaxis, dermatitis (often moderately severe) |
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Dosage of chloramphenicol for bacterial conjunctivitis?
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Bacterial conjunctivitis:
1 drop every 2–4 hours for 2 days; then if there is improvement, 1 drop 4 times daily for 5 days. -Ointment may be used as an adjunct to drops at night, or as a single agent 3 times daily, eg in children. |
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What organisms are you covering for with chloramphenicol?
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-broad spectrum bacteriostatic activity against Gram-positive, Gram-negative (except Pseudomonas spp.) and anaerobic bacteria; good ocular penetration
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Is there an association between chloramphenicol and aplastic anemia?
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-large population based studies have found no association between use of chloramphenicol eye drops and aplastic anaemia
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Describe the 3 cloramphenicol products?
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-eye drop, 0.5%, 10 mL, Chloromycetin (Pfizer), Chlorsig (Sigma), PBS
-eye drop (single use), 0.5%, 0.5 mL, 20, Minims, Chloramphenicol (Bausch & Lomb) -eye oint, 1%, 4 g, Chloromycetin (Pfizer), Chlorsig (Sigma), PBS |
