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Acta Parasitologica

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Volume 60, Issue 4


Demodex mites as potential etiological factor in chalazion – a study in Poland

Witold Tarkowski / Marta Owczyńska / Anna Błaszczyk-Tyszka / Daniel Młocicki
  • Department of General Biology and Parasitology, Medical University of Warsaw, ul. Chałubińskiego 5, Warsaw, Poland
  • W. Stefański Institute of Parasitology, Polish Academy of Sciences, ul. Twarda 51/55, 00-818 Warsaw, Poland
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Published Online: 2015-09-25 | DOI: https://doi.org/10.1515/ap-2015-0110


The aim of the study was to investigate the presence of Demodex in the hair follicles of eyelashes and their potential participation in the aetiology of chalazion in patients in Poland. The study of the correlation between the presence of Demodex spp. and chalazion has never been performed in patients in Europe. There is, therefore, a justified necessity to check whether Demodex mites can be a potential risk factor in the development of chalazion in the European population. The samples were examined by light microscope, using standard parasitological methods. A positive result was assumed in the presence of Demodex spp. Demodex was detected in 91.67% of patients with a chalazion. The presence of Demodex was found in subjects from all examined age groups. The results of statistical analysis unambiguously determined the existence of an interrelationship between the presence of Demodex and chalazion. Our results clearly indicate the existence of a correlation between the occurrence of Demodex spp. and chalazion. Confirmation of the positive correlation between Demodex and chalazion in a European population provides further evidence for the pathogenic role of Demodex in the development of eye diseases.

Keywords: Demodex; Demodex folliculorum; Demodex brevis; inflammation; cilium hair follicle; chalazion


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About the article

Received: 2015-03-17

Revised: 2015-06-23

Accepted: 2015-06-25

Published Online: 2015-09-25

Published in Print: 2015-12-01

Citation Information: Acta Parasitologica, Volume 60, Issue 4, Pages 777–783, ISSN (Online) 1896-1851, ISSN (Print) 1230-2821, DOI: https://doi.org/10.1515/ap-2015-0110.

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