Definition: the space bound by the conjunctival membrane between the palpebral and bulbar conjunctiva, into which the lacrimal fluid is secreted; it is a closed space when eye is closed; when eye is open, the sac is open anteriorly through the palpebral fissure (between the eyelids).
Synonym(s): saccus conjunctivalisTA
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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.