Background: Silent sinus syndrome is a rare condition with multiple ophthalmic findings of significance. Chronic, subclinical maxillary sinus inflammation alters the pressure gradient, leading to eventual maxillary sinus collapse, orbital floor depression, enophthalmos, and diplopia.

Case Report: Functional endoscopic sinus surgery may be indicated to correct diplopia and/or cosmesis.

Conclusion: Patients unbothered by facial asymmetry may be managed with prism in eyeglasses.

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This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License

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