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P400: MODIFIED ORBITOZYGOMATIC CRANIOTOMY FOR RESECTION OF UVEAL MELANOMA INVADING THE OPTIC NERVE AND EXTENDING INTO THE OPTIC CHIASM CAUSING CONTRALATERAL VISION LOSS
Alexander S Himstead, MD¹; Justin Liao, BS²; Angie Zhang, MD¹; Alvin Y Chan, MD¹; Nolan K Winslow, MD¹; Frank P K Hsu, MD, PhD¹; ¹University of California, Irvine; ²UC Irvine

Uveal Melanomas are the most common primary intraocular malignancy in adults, with tumor extension to surrounding structures occurring in roughly 3% of patients. Invasion into the optic nerve and extension to the optic chiasm is exceedingly rare, with only a handful of cases documented in the literature. We present a surgical video demonstrating a rare case of uveal melanoma with extension to the optic chiasm that was surgically managed with a modified orbitozygomatic (OZ) craniotomy.

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