Popis: |
This chapter focuses on periocular and retro-orbital infections. Periocular infections are infections of the soft tissues surrounding the globe of the eye. These include infections of the eyelids, lacrimal system, and orbit. Dacryocystitis, or infection of the lacrimal sac, is the most common infection of the lacrimal system and results from obstruction of the lacrimal duct. Although both preseptal and orbital infections may present with a similar external appearance of swollen, red eyelids, the distinction is important because orbital infections are usually much more serious. Cavernous sinus thrombophlebitis is a very rare complication of orbital infections or of infections in the midface “danger triangle” (upper lip to root of the nose). |