Demodex in eyelash follicles in patients with Meibomian gland dysfunction

AIM: To investigate the prevalence and clinical effects of the comprehensive treatment of demodex in eyelash follicles in patients with Meibomian gland dysfunction(MGD). <p>METHODS: This study was a prospective analysis.The MGD patients(experimental group, 264 eyes in 132 patients)and normal s...

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Main Authors: Bin Zhang, Wei Li, Wei He
Format: Article
Language:English
Published: Press of International Journal of Ophthalmology (IJO PRESS) 2019-01-01
Series:Guoji Yanke Zazhi
Subjects:
Online Access:http://ies.ijo.cn/cn_publish/2019/1/201901040.pdf
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author Bin Zhang
Wei Li
Wei He
author_facet Bin Zhang
Wei Li
Wei He
author_sort Bin Zhang
collection DOAJ
description AIM: To investigate the prevalence and clinical effects of the comprehensive treatment of demodex in eyelash follicles in patients with Meibomian gland dysfunction(MGD). <p>METHODS: This study was a prospective analysis.The MGD patients(experimental group, 264 eyes in 132 patients)and normal subjects(control group, 192 eyes in 96 patients)were collected from the He Eye Hospital from January 2016 to July 2017. Comprehensive treatment of patients in the experimental group. Eyelash sampling, demodex counting, tear film break up time(BUT), cornea fluorescein staining(FL)and Schirmer Ⅰ test(SⅠt)were measured for both groups. The symptom score of MGD patients was recorded.<p>RESULTS: For the experimental and control groups, the number of demodex before the treatment was 7(6, 9)and 2(1, 3), respectively(<i>Z</i>=5.264, <i>P</i><0.01). The percentage of demodex infestation was 100% and 28.1%,respectively(χ<sup>2</sup>=35.957, <i>P</i><0.01). The BUT was 4.06±1.38 and 12.00±2.82s. The FL was 3.06±1.57 and 0.46±0.63. The SⅠt was 6.93±2.08mm and 11.13±2.38mm/5min, respectively(<i>t</i>=-9.825, <i>t</i>=5.978, <i>t</i>=-4.776; all <i>P</i><0.01). The symptom score of the MGD group before and after treatment was 6.57±2.93 and 3.27±1.89, respectively(<i>t</i>=5.443, <i>P</i><0.01). After the treatment, the percentage of demodex infestation of the experimental group were 57.6%, the number of demodex were 3(0-5), had significant difference with the data before the treatment(<i>Z</i>=3.937, <i>P</i><0.01). The BUT and FL were 6.53±3.27s and 1.67±0.54, and all had significant difference with the data before the treatment(<i>t</i>=5.152, 4.328; all <i>P</i><0.01). The SⅠt of the experimental group after the treatment was 8.37±5.34mm/5min, with no significant difference with the data before the treatment(<i>t</i>=-0.285, <i>P</i>=0.748).<p>CONCLUSION: Demodex infection can cause Meibomian gland dysfunction and produce corresponding clinical symptoms. The comprehensive treatment can greatly diminishes the number of demodex mites and effectively relieve the symptoms of Meibomian gland dysfunction which is associated with demodex infestation.
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spelling doaj.art-6be36b80b30448018d63c26113b7224a2022-12-21T17:34:06ZengPress of International Journal of Ophthalmology (IJO PRESS)Guoji Yanke Zazhi1672-51231672-51232019-01-0119116917110.3980/j.issn.1672-5123.2019.1.40Demodex in eyelash follicles in patients with Meibomian gland dysfunctionBin Zhang0Wei Li1Wei He2He Eye Hospital, Shenyang 110034, Liaoning Province, ChinaHe Eye Hospital, Shenyang 110034, Liaoning Province, ChinaHe Eye Hospital, Shenyang 110034, Liaoning Province, ChinaAIM: To investigate the prevalence and clinical effects of the comprehensive treatment of demodex in eyelash follicles in patients with Meibomian gland dysfunction(MGD). <p>METHODS: This study was a prospective analysis.The MGD patients(experimental group, 264 eyes in 132 patients)and normal subjects(control group, 192 eyes in 96 patients)were collected from the He Eye Hospital from January 2016 to July 2017. Comprehensive treatment of patients in the experimental group. Eyelash sampling, demodex counting, tear film break up time(BUT), cornea fluorescein staining(FL)and Schirmer Ⅰ test(SⅠt)were measured for both groups. The symptom score of MGD patients was recorded.<p>RESULTS: For the experimental and control groups, the number of demodex before the treatment was 7(6, 9)and 2(1, 3), respectively(<i>Z</i>=5.264, <i>P</i><0.01). The percentage of demodex infestation was 100% and 28.1%,respectively(χ<sup>2</sup>=35.957, <i>P</i><0.01). The BUT was 4.06±1.38 and 12.00±2.82s. The FL was 3.06±1.57 and 0.46±0.63. The SⅠt was 6.93±2.08mm and 11.13±2.38mm/5min, respectively(<i>t</i>=-9.825, <i>t</i>=5.978, <i>t</i>=-4.776; all <i>P</i><0.01). The symptom score of the MGD group before and after treatment was 6.57±2.93 and 3.27±1.89, respectively(<i>t</i>=5.443, <i>P</i><0.01). After the treatment, the percentage of demodex infestation of the experimental group were 57.6%, the number of demodex were 3(0-5), had significant difference with the data before the treatment(<i>Z</i>=3.937, <i>P</i><0.01). The BUT and FL were 6.53±3.27s and 1.67±0.54, and all had significant difference with the data before the treatment(<i>t</i>=5.152, 4.328; all <i>P</i><0.01). The SⅠt of the experimental group after the treatment was 8.37±5.34mm/5min, with no significant difference with the data before the treatment(<i>t</i>=-0.285, <i>P</i>=0.748).<p>CONCLUSION: Demodex infection can cause Meibomian gland dysfunction and produce corresponding clinical symptoms. The comprehensive treatment can greatly diminishes the number of demodex mites and effectively relieve the symptoms of Meibomian gland dysfunction which is associated with demodex infestation.http://ies.ijo.cn/cn_publish/2019/1/201901040.pdfMeibomian glandsdemodexcomprehensive treatment
spellingShingle Bin Zhang
Wei Li
Wei He
Demodex in eyelash follicles in patients with Meibomian gland dysfunction
Guoji Yanke Zazhi
Meibomian glands
demodex
comprehensive treatment
title Demodex in eyelash follicles in patients with Meibomian gland dysfunction
title_full Demodex in eyelash follicles in patients with Meibomian gland dysfunction
title_fullStr Demodex in eyelash follicles in patients with Meibomian gland dysfunction
title_full_unstemmed Demodex in eyelash follicles in patients with Meibomian gland dysfunction
title_short Demodex in eyelash follicles in patients with Meibomian gland dysfunction
title_sort demodex in eyelash follicles in patients with meibomian gland dysfunction
topic Meibomian glands
demodex
comprehensive treatment
url http://ies.ijo.cn/cn_publish/2019/1/201901040.pdf
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AT weili demodexineyelashfolliclesinpatientswithmeibomianglanddysfunction
AT weihe demodexineyelashfolliclesinpatientswithmeibomianglanddysfunction