Orbital Cellulitis: patients with active infection of the orbital soft tissue posterior to the orbital septum may present with fever, proptosis, chemosis, restriction of motility and pain on movement of globe. Orbital cellulitis can occur in adults and is the most common cause of proptosis in children. Usually the orbital infection is due to a secondary spread from the sinuses through the medial wall. Occasionally the cellulitis is secondary to recent trauma. If the orbital apex is involved, decreased vision and pupillary abnormalities can occur. A CT scan is needed to evaluate the extent of the disease, to rule-out a subperiosteal or orbital abscess, and to depict sinus or intracranial involvement. Treatment consists of hospital admission, culturing of any discharge and systemic antibiotics. Surgical drainage of abscesses are often performed, especially if the patient has not responded appropriately to medical treatment. Back to Orbit