Nasal polyps causing bone destruction and blindness.

Although nasal polyposis is a common entity, it is seldom considered a cause of bony destruction with consequent ophthalmologic and neurologic sequelae. Acute bilateral visual loss developed suddenly in a young, healthy woman with nasal polyps. Evaluation revealed erosion of the floor of the anterior cranial fossa, with compression of the optic nerves secondary to extensive paranasal and nasal polyposis. The clinical course, treatment, and histopathologic findings are discussed.