Conjunctivitis

Question 1

causes of bacterial conjunctivitis in neonates

Answer 1

staph aureus
neisseria gonorrhoea
chlamydia trachomatis

Question 2

causes of bacterial conjunctivitis in other age groups

Answer 2

strep pneumonia
H. influenza
neisseria gonorrhoea
chlamydia
staph aureus

Question 3

presentation of bacterial conjunctivitis

Answer 3

rapid onset
morning crust (yellow discharge that is purulent)
difficulty opening eye(s)
gritty

Question 4

diagnosis of bacterial conjunctivitis

Answer 4

swab

Question 5

management of bacterial conjunctivitis

Answer 5

topical antibiotics e.g. chloramphenicol qds as drops or ointment
fusidic acid for staph aureus
gentamicin for pseudomonas aeruginosa

Question 6

adverse of chloramphenicol

Answer 6

allergy
irreversible aplastic anaemia
grey baby syndrome (neonatal liver cannot cope)

Question 7

presentation of neisseria gonorrhoea

Answer 7

lid swelling
globe tenderness
conjunctival chemosis
plus other symptoms of bacterial conjunctivitis

can lead to corneal ulceration and perforation

Question 8

which bacteria is unresponsive to normal conjunctivitis treatment?

Answer 8

chlamydia

Question 9

when should chlamydia be suspected in conjunctivitis?

Answer 9

bilateral in young adults

Question 10

presentation of chlamydia conjunctivitis

Answer 10

low grade red eye
follicles on inner eyelid (grains of rice)
discharge
pre-auricular lymphadenopathy

Question 11

diagnosis of chlamydial conjunctivitis

Answer 11

consent for chlamydia swab

contact tracing needed

Question 12

management of chlamydial conjunctivitis

Answer 12

topical oxytetracycline

azithromycin PO for genital infection

Question 13

risk in chlamydia conjunctivitis

Answer 13

subtarsal scarring

Question 14

causes of viral conjunctivitis

Answer 14

adenovirus
herpes simplex virus (HSV)
herpes zoster

Question 15

risk in viral conjunctivitis

Answer 15

highly contagious so often spreads to both eyes, strict hand hygiene and no sharing towels

Question 16

presentation of viral conjunctivitis

Answer 16

rapid onset
watery
pain
pre-auricular nodes
history of URTI

Question 17

presentation addition in herpes simplex conjunctivitis

Answer 17

vesicles on conjunctiva and eyelids

Question 18

what is herpes zoster conjunctivits?

Answer 18

reactivation of V1, V2 and/or V3

Question 19

management of herpes zoster conjunctivitis

Answer 19

acyclovir to minimise the risk of post-hepatic neuralgia

Question 20

diagnosis of viral conjunctivitis

Answer 20

swab

Question 21

management of viral conjunctivitis

Answer 21

topical lubricants e.g. hypromellose

Question 22

presentation of allergic conjunctivitis

Answer 22

itchy
watery
bilateral

Question 23

management of allergic conjunctivitis

Answer 23

allergen avoidance
topical antihistamines
once stabilised use mast cell stabilisers e.g. sodium cromoglycate