Abstract
Three patients demonstrating a visual disturbance due to rhinogenic optic neuropathy were investigated as subjects in this study. A CT scan and MRI showed either a cystic lesion or sinusitis of the posterior paranasal sinus. Two of the three patients underwent emergency endoscopic nasal surgery, which resulted in an improvement of their visual acuity in spite of a long interval of more than 8 days between the onset of symptoms and surgery. The visual loss of the other patient recovered without surgery, but a sphenoidal cyst closely related to the optic nerve was opened endoscopically to avoid the risk of a relapse. The pertinent literature related to rhinogenic optic neuropathy was also herein briefly reviewed.
