The tarsal plates are fibrous structures within the upper and lower lids. They are attached to the orbital rim by the medial palpebral ligament and lateral palpebral raphe. The middle insertion of the levator palpebrae superioris attaches to the upper tarsal plate. (The deep insertion attaches to the superior conjunctival fornix, the superficial to the skin of the eyelid). The lacrimal canalicule embrace the medial palpebral ligament.