Orbital cellulitis

Question 1

orbital cellulitis definition

Answer 1

infection in the orbital soft tissues with ocular dysfunction, usually due to underlying bacterial sinusitis

Question 2

orbital cellulitis presentation

Answer 2

• frontal headaches
• fevers
• diplopia or vision loss
• lid swelling
• proptosis, chemosis
• limitation of ocular movements

Question 3

orbital cellulitis causes

Answer 3

• usually secondary to ethmoidal sinusitis
• inflammation causes raised IOP
• results in optic nerve compression

Question 4

orbital cellulitis diagnosis

Answer 4

• contrast CT is diagnostic
• MRI if suspected abscess
• red, swollen, tender
• recent infections
• swab may be positive

Question 5

orbital cellulitis management

Answer 5

• admit for IV antibiotics (empirical and then targeted)
• take FBC and blood cultures
• ENT opinion as sinus drainage may be needed