Characteristics of Atypical Orbital Complications of Sinusitis.

Introduction: Orbital complications of rhinosinusitis in adults are scarcely discussed in the literature. We defined atypical orbital complications as those without typical orbital invasion and not classified by the Chandler classification. These complications present as visual loss of diplopia without soft tissue swelling, pain, or computed tomography images of an orbital abscess.

Objectives: The objective of this study was to review our experience with the management of atypical orbital complications of rhinosinusitis and to identify key factors in the characteristics of these patients.

Methods: A retrospective case series review was conducted from 2015 to 2019 in a tertiary referral center, which included all patients with rhinosinusitis and orbital complications.

Results: Five patients were identified with atypical complications in the orbital area. Two of the 5 patients exhibited vision loss without any other symptoms. Two patients showed diplopia with or without ptosis. One patient had a headache and ptosis. Complete recovery was noted in 4 of the 5 patients after endoscopic sinus surgery.

Conclusion: With future studies, new surgical criteria, including retinal destruction, location of the sinusitis, the onset of ophthalmological symptoms, and culture results may be added to the classical surgical criteria to manage orbital complications of paranasal sinus infection cases.