Figure 6.

Multiplanar reconstruction of the CT images showing the morphometric measurements regarding orbital entrance and orbital depth. (A) The orbital rim landmarks were identified on octagonal polygon shaped orbital entrance in coronal plane: 1 supraorbital foramen, 3 frontoethmoidal suture and 2 midpoint between them, 4 ethmoidomaxillary suture, 5 infraorbital foramen, 7 zygomaticofrontal suture and 6 midpoint between them, 8 midpoint between zygomaticofrontal suture and supraorbital foramen. The area of this octagonal polygon was measured as orbital entrance area. Orbital entrance height (OE_height) from infraorbital foramen to midpoint of the superior orbital rim and orbital entrance width (OE_width) from frontoethmoidal suture to midpoint of the lateral orbital rim. (B) Orbital depth was taken as horizontal measurement from orbital foramen (OF) to orbital entrance.