Predictability of Optic Foramen Location From a Ray Through the Ethmoidal Foramina

Milap P Mehta, Rao V Chundury, Eric S Ahn, Dipesh Mehta, Lyman M Jellema, Julian D Perry
Ophthalmic Plastic and Reconstructive Surgery 2016, 32 (6): 481-483

PURPOSE: To determine how accurately a ray through the anterior and posterior ethmoidal foramina predicts the location of the optic foramen.

METHODS: Dried, well-preserved, complete human skulls without bony defects belonging to the Hamann-Todd osteological collection of the Cleveland Museum of Natural History were examined. Photography was performed and a ray was drawn on orbit photographs extending through the center of the anterior and posterior ethmoidal foramina toward the optic canal. The location of the ray at the anterior aspect of the optic canal was recorded.

RESULTS: Sixty-six total orbits were examined from 36 skulls with 6 skulls with only unilateral data. Thirty-eight orbits were of African descent and 28 were of European descent with an average age 45.25 years (range = 19-89 years). The anterior-posterior ethmoidal foramen ray extended superior (12/66), through (53/66), and inferior (1/66) to the optic canal. Of those rays passing through the optic canal, 32/53 (60%) passed through the upper one-third, 19/53 (36%) passed through the middle one-third, and 2/53 (4%) passed through the lower one-third of the optic canal.

CONCLUSIONS: The anterior-posterior ethmoidal foramen ray highly predicts the superior aspect of the optic canal. This information can guide medial orbital wall surgery.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"