This study investigates the value of combined Non-Linear Scanning (NLS) techniques in diagnosing and monitoring orbital cellulitis. Sixty individuals, including 35 patients with orbital cellulitis, underwent ophthalmologic examination alongside advanced NLS imaging methods such as three-dimensional ultramicroscanning and spectral-entropic analysis. The technique successfully identified characteristic signs of orbital inflammation, including enlargement and increased chromogeneity of the retrobulbar space. NLS imaging enabled precise localization of inflammatory lesions, assessment of optic nerve, extraocular muscle, and eyeball involvement, and detection of complications such as abscess formation and thrombophlebitis. Three-dimensional visualization improved understanding of disease extent and supported surgical planning when necessary. Repeated examinations also provided an effective means of monitoring treatment response and disease progression. The findings suggest that combined NLS imaging is a valuable, non-invasive tool for the diagnosis, management, and follow-up of patients with orbital cellulitis.

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