Purpose: Cellulitis in the orbital region is a relatively frequently observed ocular disease. Differential diagnosis of preseptal and orbital cellulitis is clinically possible. However physical examination may be insufficient for some differential diagnoses. The majority of pediatric patients with orbital and preseptal cellulitis present with complications of sinusitis. If left untreated it may cause vision loss and life-threatening intracranial complications. In this study we investigated the clinical findings, efficacy of treatment and complications of patients with orbital and preseptal cellulitis.