Tomography of the optic canal.
D005128:Eye Diseases / Q000000981:diagnostic imaging; D006801:Humans; D009880:Ophthalmic Artery / Q000033:anatomy & histology; D009900:Optic Nerve / Q000033:anatomy & histology; D011859:Radiography; D013100:Sphenoid Bone / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D014054:Tomography