Lacrimal gland ductule stones.

Chronic unilateral conjunctivitis may be caused by various infectious, inflammatory, neoplastic, or mechanical conditions. Two patients with persistent unilateral conjunctivitis were cured after removal of dacryoliths from the palpebral lobe of the ipsilateral lacrimal gland. Although lacrimal gland ductular dacryoliths are rare, this entity should be included in the differential diagnosis of chronic unilateral conjunctivitis.