Table 1.

Definitions of measurements of the orbital morphometry.

Definitions
Orbital entrance height	The distance from the infraorbital canal to superior orbital rim
Orbital entrance width	The distance from the frontoethmoidal suture to midpoint of the lateral rim
Orbital cavity depth	The distance from the orbital foramen to the plane passing across the orbital entrance
Orbital entrance area	The area of an octagonal polygon which is formed by anatomical landmarks; supraorbital foramen, frontoethmoidal suture, infraorbital foramen, zygomaticofrontal suture and midpoints between them
Orbital floor area	The triangular area from the orbital foramen to the plane passing across the orbital entrance
Orbital medial wall area	The triangular area from the orbital foramen to the plane passing across the orbital entrance
Anterior orbital medial wall height and inferiomedial angle	The distance from the AEF to the ethmoidomaxillary suture and inferomedial angle between the orbital medial and inferior walls
Posterior orbital medial wall height and inferiomedial angle	The distance from the AEF to the ethmoidomaxillary suture and inferomedial angle between the orbital medial and inferior walls
Lamina papyracea length	The distance from the posterior lacrimal crest to junction point between sphenoid and ethmoid sinuses