Gaze-evoked blindness.
Three patients with orbital lesions had substantial visual loss while maintaining their eye in an eccentric position of gaze (gaze-evoked blindness). The acuity rapidly returned to baseline levels on return to primary position. Two patients had optic nerve sheath meningiomas and one a displaced portion of orbital bone in contact with the globe. Disc abnormalities and/or choroidal folds were present in all three cases. Gaze-evoked blindness is characterized by the presence of an intraconal mass lesion, but proptosis may be subtle or not present at all. Gaze-evoked blindness should be considered in the differential diagnosis of all patients with atypical amaurosis fugax.
D000293:Adolescent; D000328:Adult; D001766:Blindness / Q000175:diagnosis / Q000209:etiology*; D003390:Cranial Nerve Neoplasms / Q000150:complications; D003937:Diagnosis, Differential; D005133:Eye Movements; D005260:Female; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000150:complications; D008579:Meningioma / Q000150:complications; D009896:Optic Atrophy / Q000150:complications; D009901:Optic Nerve Diseases / Q000150:complications; D009917:Orbital Fractures / Q000150:complications; D010211:Papilledema / Q000150:complications; D015051:Zygomatic Fractures / Q000150:complications