Orbital cellulitis occurs secondary to microbial infiltration of the deep soft tissue cells surrounding the eye, posterior to the orbital septum. The infiltration can occur by means of extension of an adjacent infection (e.g., rhinosinusitis), by direct inoculation through traumatic or iatrogenic pathways, or by hematogenous spread from a distant infected site. Regardless of the mode of infiltration of the retroseptal orbital space, symptoms may arise due to the immune system triggering a regional acute inflammatory response.
Orbital cellulitis pathophysiology
Blepharitis pathophysiology
Mastoiditis pathophysiology
Orbital cellulitis classification
Orbital cellulitis causes
Eye pain pathophysiology
Corneal ulcer laboratory findings
Cavernous sinus thrombosis pathophysiology