Conjunctivitis Flashcards Preview

Opthalmology > Conjunctivitis > Flashcards

Flashcards in Conjunctivitis Deck (25)
Loading flashcards...
1

what is the conjunctiva

a mucous membrane which covers the eye and protects it

2

def

inflammation of the conjunctiva

3

aetiology

there are four main causes
1 bacteria (most common)
2 viral
3 chlamydial
4 allergic

4

what are the main symptoms of bacterial conjunctivitis

red
sticky
gritty

5

what are the main symptoms of viral conjunctivitis

red
watery
gritty

6

what are the main symptoms of chlamydial conjunctivitis

red
persistant discharge

7

what are the main symptoms of allergic conjunctivitis

red
itchy
swelling

8

what would you expect of visual acuity in conjunctivitis

should be normal or near normal

9

which types of conjunctivitis would you expect to see preauricular lymphadenopathy

viral and chlamydial

10

epi

affects male and females of all ages
bacterial conjunctivitis is more common in children
viral conjunctivitis is more common in adults

11

what causes bacterial conjunctivitis

staph epidermidis
staph aureus
h. influenzae (common in children)

12

history + examination of bacterial conjunctivitis

red
sticky
gritty

13

investigations of bacterial conjunctivitis

for patients with severe or recurrent conjunctivitis, take conjunctival swabs for culture sensitivities

14

what are causes of viral conjunctivitis

adenovirus

15

history + examination of viral conjunctivitis

red
watery
gritty

16

investigations of viral conjunctivitis

conjunctival swabs to determine viral antigen and therefore the virus

17

what causes chlamydial conjunctivitis

chlamydia trachomatis

18

how is chlamydia trachomatis transmitted

sexually transmitted (common in young adults)

19

history + examination of chlamydial conjunctivitis

slower onset, which is unilateral or bilateral

red
persistant discharge

associated with cervicitis in females and urethritis in males

20

investigations in chalmydial conjunctivitis

conjunctival swabs for immunofluorescent staining

21

aetiology of allergic conjunctivitis

due to Type 1 hypersensitivity reactions to airborne allergens (seasonal such as pollen, or perennial such as animal fur and the house dust mite)

22

history + examination of allergic conjunctivitis

history of atopy
red
itchy
swelling

23

investigations of allergic conjunctivitis

conjunctival swabs
IgE levels

24

what might happen to the eyelids in the morning with conjunctivitis

they might be stuck together

25

risk factors

exposure to infected person
environmental allergens
swimming pools