Neurogenic monocular nasal field defects respecting the vertical midline are quite uncommon. We report a case of a unilateral nasal hemianopia that was caused by compression of the left optic nerve by a sphenoid wing meningioma. Histological examination revealed that the pathology of the meningioma was consistent with that of an atypical meningioma, which carries a guarded prognosis with increased chance of recurrence. The tumor was debulked surgically, and the patient's visual field defect improved.
Department of Neuro-Ophthalmology (RCS, SL, DMC); and David G. Cogan Laboratory of Ocular Pathology (RCS, FAJ), Massachusetts Eye and Ear Infirmary, Boston, Massachusetts
None of the authors has any financial conflicts of interest.
R. C. Stacy is supported in part by the Heed Foundation.
Address correspondence to Rebecca C. Stacy, MD, PhD, Suite 321, 243 Charles Street, Boston, MA 02114; E-mail: Rebecca_Stacy@meei.harvard.edu.