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Optic canal is formed by two roots of lesserwing and body of sphenoid bone. It transmits optic nerve, ophthalmic artery and periarterial sympathetic plexus. During demonstration classes for undergraduate students we observed optic canal of left orbit of the adult skull, showing a thin spicule of bone which divided optic canal into two. Unilateral presence of duplicated optic canal is very rare. This case report may be useful for surgeons and radiologists.

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