Precise localization of the orbital bony anatomy is very important for successful operative results in orbital and maxillofacial surgeries. This study was constructed to decrease the risks in operation in this region.
Orbits of both sides of seventy-six skulls of both sexes were subjected to different measurements using Vernier calipers. On the lateral wall, the mean distances between the frontozygomat-ic suture and the midpoint of lacrimal groove, lateral margin of optic fora­men, inferior orbital fissure, midpoint of fossa for lacrimal gland and fronto-maxillary suture were 41.1 mm, 50.4 mm, 34.6 mm, 16.1 mm and 39.5 mm respectively. On the medial wail, the mean distances between the midpoint of anterior lacrimal crest and the ante­rior ethmoidal foramen, posterior ethmoidal foramen, midpoint of optic fo­ramen and posterior lacrimal crest were 25.5 mm, 37.4 mm, 47 mm and 8.5 mm respectively. On the same wall, the distance between plane of anterior-posterior ethmoidal foramina to the ethmoido-maxillary suture was 14.2 mm. The mean distances be­tween each of the posterior and ante­rior ethmoidal foramina and posterior end of optic canal were 16.4 mm and 29.2 mm respectively, in 25.6% of or­bits, a third foramen was found be­tween the anterior and posterior eth­moidal foramina On the superior wall, the distances between the supraorbi-tal notch/foramen and the midpoint of superior orbital fissure, midpoint of lacrimal groove, superior margin of optic foramen, midpoint between su­perior orbital fissure and posterior eth­moidal foramen, midpoint of fossa for lacrimal gland, midline and nasion