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Fig. 45-10. Sagittal section through the eyelids and anterior eye. The levator palpebrae superioris (supplied by the oculomotor nerve) is assisted by the superior tarsal muscle (supplied by the sympathetic). The conjunctival sac is lined by an epithelium (shown in blue) that is continuous with the anterior epithelium of the cornea. Also shown are the anterior chamber, iris, posterior chamber, ciliary zonule, and lens. Click for high resolution image.