Orbital cellulitis Flashcards
1
Q
What is orbital cellulitis
A
- infection of the soft tissues behind the orbital septum.
2
Q
What are the causes of orbital cellulitis
A
Same causes of meningitis:
- Streptococcus pneumoniae
- staphylococcus aureus
- haemophilus influenza
3
Q
What are the risk factors of orbital cellulitis?
A
- sinus disease
- trauma e.g. septal perforation
4
Q
What are the symptoms of orbital cellulitis?
A
- unilateral
- rapid onset of erythema and swelling
- sever pain
- blurred vision / diplopia
- fever, headache
- systemic malaise
5
Q
What are the signs of orbital cellulitis?
A
- lid erythema
- oedema
- pain
- reduced visual acuity
- proptosis (protrusion of the eye)
6
Q
What are the differentials of orbital cellulitis?
A
- preseptal cellulitis
- necrotising fasciitis
7
Q
What are the investigations for orbital cellulitis?
A
- FBC (leucocytosis)
- CT of sinuses as well as orbit and brain
8
Q
What is the treatment for orbital cellulitis?
A
- IV cefuroxime and metronidazole
