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Arch Otolaryngol Head Neck Surg. 2007;133(1):93.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Diagnosis: Blindness secondary to nasal polyposis

The intraoperative and pathologic findings demonstrated that the patient had nasal polyps that had eroded the lamina papyracea and occupied part of the orbit. Spontaneous complications such as subperiosteal and orbital cellulitis and abscess, cavernous sinus thrombosis, osteomyelitis, lacrimal gland abscess, loss of vision, and eyeball displacement¹ are rarely seen in nasal polyposis.^2-3 Few cases of optic nerve affection have been reported,³ and only a small percentage involve total blindness.² Most of the mechanisms that are responsible for optical neuritis associated with nasal disease are still unclear,^4-5 but several causes have been proposed: (1) mechanical pressure over the optic nerve and the central artery of the retina^{2, 4-5}; (2) direct spread of infection to the nerve^{2, 4-5}; (3) indirect spread of infection through venous and lymphatic channels^4-5; (4) hematogenous transference of infection^4-5; and (5) localized allergic reaction involving the tissues of both sinus and orbit.^{2, 4-5} Optical neuritis is . . . [Full Text of this Article]

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Arch Otolaryngol Head Neck Surg. 2007;133(1):91.
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