Orbital Cellulitis and Endophthlamitis

Question 1

what is the difference between preseptal and orbital cellulitis

Answer 1

preseptal = just upper eye
orbital = whole eye

Question 2

what can be seen in the presentation of orbital cellulitis

Answer 2

painful eye(esp on movement), proptosis, paranasal sinusitis, pyrexial, sight threatening

Question 3

what investigation is used for suspected orbital cellulitis

Answer 3

CT scan

Question 4

what is orbital cellulitis a direct extension from

Answer 4

from sinus, or from focal orbital infection, post-operative

Question 5

what different organisms can cause orbital cellulitis

Answer 5

staphylococci, streptococci, coliforms, haemophilus influenzae, anaerobes

Question 6

describe the presentation of endophthalmitis

Answer 6

devastating infection inside of eye, very painful with decreasing vision, very red eye, sight threatening

Question 7

how is endophthalmitis usually caused

Answer 7

by surgery, occurs post-surgical

Question 8

what organisms can cause endophthalmitis

Answer 8

often conjunctival commensals, most commonly staph epidermidis

Question 9

what treatment is used for endophthalmitis

Answer 9

intravitreal amakicin, ceftazidime, vancomycin and topical antibiotics