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Demodex infestation in the normal population, blepharitis patients and among people who work with microscopes
Author(s) -
UDZIELA M,
SZAFLIK JP,
GARBACEWICZ A,
GRYTNERZIECINA B,
SZAFLIK J
Publication year - 2011
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2011.431.x
Subject(s) - demodex , blepharitis , population , age groups , etiology , medicine , dermatology , biology , mite , pathology , demography , botany , environmental health , sociology
Purpose Aim of the study was to estimate the prevalence of Demodex spp. infections of lid margin in Polish population Methods 264 individuals were enrolled in the study. Patients were divided into four groups. First two groups consisted of young people (mean age 22 years) and seniors (mean age 66 years). The third group was made up of people who work with microscopes. Forth group consisted of patients with diagnosed blepharitis. From every individual 3‐4 lashes were epilated from upper and lower lid margin of each eye and examined under the microscope for Demodex mites. Results The lowest number of infected individuals was observed in the young group‐ only 5%, the highest in blepharitis patients‐ 74% infected. Among microscope users (mean age 44 years) 30% were infected, in senior group (mean age 66 years) also 30% were infected. Conclusion Demodex mites are etiological factors of blepharitis. There is a significant correlation between Demodex spp. infection and the age of the examined individual. People who work with microscopes are in a risk group for Demodex infection of lid margins.