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  • Title: Dacryolith formation around an eyelash retained in the lacrimal sac.
    Author: Jay JL, Lee WR.
    Journal: Br J Ophthalmol; 1976 Oct; 60(10):722-5. PubMed ID: 1009044.
    Abstract:
    A dacryolith was discovered in the lacrimal sac during a dacryocystorhinostomy for chronic dacryocystitis in which there was mucocele formation. Morphological examination confirmed the presence of an eyelash at the centre of the stone and electron microscopy demonstrated the presence of fungi (Candida sp.) in a matrix which was of markedly vairable morphology. The mechanism by which a hair enters the punctum and passes along the canaliculus may be attributed to the step-like pattern of ridges on the surface of a hair. The directional nature of these ridges dictates preferential movement towards the root end of the hair and prevents movements in the opposite direction.
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