Fig. 1From: Is orbital floor a reliable and useful surgical landmark in endoscopic endonasal surgery?: a systematic reviewCT scan of paranasal sinus (coronal view) showing the relation of orbital floor from the other anatomical landmarks. (CG- crista galli; ER- ethmoid roof; CP- cribriform plate; OF- orbital floor; NF- nasal floor; X-ethmoid roof to orbital floor; Z- cribriform plate to orbital floor)Back to article page