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Conjunctival Commensal Isolation and Identification in Mice

Conjunctival Commensal Isolation and Identification in Mice

Published on: May 1, 2021

Comparative ocular microbial communities in humans with and without blepharitis.

Se Hee Lee¹, Doo Hwan Oh, Ji Young Jung

¹School of Biological Sciences, Research Center for Biomolecules and Biosystems, Chung-Ang University, Seoul, Republic of Korea.

Investigative Ophthalmology & Visual Science

|July 28, 2012

Summary

Blepharitis alters ocular microbial communities, with decreased eyelash bacteria diversity and increased tear bacteria diversity in patients. Increased Streptophyta, Corynebacterium, and Enhydrobacter suggest environmental factors may induce blepharitis.

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Area of Science:

Ophthalmology
Microbiology
Genomics

Background:

Blepharitis is a common ocular condition with multifactorial causes.
The role of the ocular microbiome in blepharitis pathogenesis remains incompletely understood.

Purpose of the Study:

To compare ocular microbial communities in individuals with and without blepharitis.
To identify potential microbial causes of blepharitis.

Main Methods:

Sequencing of bacterial 16S rRNA genes from eyelash and tear samples.
Bioinformatic comparison of bacterial community structures in blepharitis patients and healthy controls.

Main Results:

Eyelash bacterial communities were less diverse in blepharitis patients, while tear communities were more diverse.
Tear bacterial communities clustered in blepharitis patients, unlike healthy controls.
Increased relative abundance of Staphylococcus, Streptophyta, Corynebacterium, and Enhydrobacter, and decreased Propionibacterium were observed in blepharitis subjects.

Conclusions:

Elevated Streptophyta, Corynebacterium, and Enhydrobacter suggest environmental factors like pollen and dust may trigger blepharitis.
Findings offer insights into the ocular microbial flora for blepharitis prevention and treatment.