Eye socket anatomy, illustration. This is a sagittal view, with the front of the eye at left. At top is the frontal bone, with the corrugator muscle (pink) to its left. The levator muscle (pink, striped) of the eyelid runs from upper right to lower centre. The orbital septum is yellow. The eyelid margin and eyelashes are at bottom centre. The lens of the eye and its cornea are to the right of this. For a labelled version of this image see C046/1439.