E XTENDS FROM THE PERIOSTEUM OF THE ORBITAL RIM TO THE LEVATOR APONEUROSIS

E XTENDS FROM THE PERIOSTEUM OF THE ORBITAL RIM TO THE INFERIOR BORDER OF THE TARSAL PLATE

Eyelid swelling both causes and results from impeded venous flow and lymphatic drainage – leading to self-propagating process

FeaturePreseptalOrbital Proptosis AbsentPresent Motility Normal - painDecreased + pain and double vision Vision NormalReduced – check vision and color vision Pupillary Reaction Normal+/- APD – check swinging flashlight test Chemosis RareCommon Corneal Sensation NormalMay be reduced Systemic Signs Absent/MildCommonly severe (Fever/Leukocytosis)