Keratitis

Question 1

cause of keratitis

Answer 1

bacterial/viral

usually due to corneal abrasion or prolonged contact lens wear

or dry eyes

Question 2

what is keratitis

Answer 2

inflammation of the cornea

Question 3

bacterial presentation

Answer 3

bacterial: red eye, pain, photophobia, foreign body sensation, reduced visual acuity

Question 4

what is seen on examination of bacterial keratitis

Answer 4

red eye, epithelial defect, white cell infiltrate, oedema

Question 5

viruses that cause keratitis and their presentation

Answer 5

HSV
primary infection usually v mild, childhood after URTI. 2nd infection = DENDRITIC ULCER. seen using fluorescein stain

VZV - HERPES ZOSTER OPTHALMICUSs. years to decades after primary -> flu like illness, neuralgia, maculopapular rash over opthalmic branch of trigerminal

Question 6

management bacterial

Answer 6

intensive abx. may need admission of not compliant

topical steroids

Question 7

management viral

Answer 7

refer
topical antivirals (HSV)
systemic antivirals (VZV)
topical steroids