ArticleTranslational vision science & technology2021
Ocular Surface Microbiome Alterations Are Found in Both Eyes of Individuals With Unilateral Infectious Keratitis.
Article in Translational vision science & technology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Profiling of ocular surface microbiome and its ocular types in children and adolescents.Communications medicine · 2026Article
- The microenvironment of ocular surface in keratoconus: a systematic review.Eye and vision (London, England) · 2025Review
- Toward the Characterization of the Human Core Ocular Surface Microbiome.Investigative ophthalmology & visual science · 2025Article
- Distinct Ocular Surface Microbiome in Keratoconus Patients Correlate With Local Immune Dysregulation.Investigative ophthalmology & visual science · 2025Article
- Sequencing the ocular surface microbiome: a review of methodological practices and considerations.Frontiers in ophthalmology · 2025Review
- Changes in the ocular surface microbiome of patients with coronavirus disease 2019 (COVID-19).Frontiers in microbiology · 2024Article
- A Comprehensive Review of Microbial Biofilms on Contact Lenses: Challenges and Solutions.Infection and drug resistance · 2024Review
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Authors and funding
3 authors.
Funding
Abstract
Purpose: To analyze the ocular surface microbiome (OSM) profile in both eyes of individuals with unilateral keratitis. Methods: In this prospective, cross-sectional study, the conjunctival OSM of adults (>18 years old) presenting to an ophthalmic emergency department with acute unilateral keratitis and controls without an acute infectious process was sampled. Samples underwent DNA amplification and 16S sequencing using Illumina MiSeq 250 and were analyzed using Qiime. Statistical analysis was performed using a two-sided Student t-test, diversity indices, and principal coordinate analysis. The main outcome measures included relative abundance and α and β diversity. Results: Bacterial DNA was recovered from all 34 eyes of 17 individuals with keratitis (mean age, 49.3 ± 17.5 years) and 16 eyes of controls (mean age, 56.6 ± 17.0 years). In the two culture-positive eyes, 16S aligned with culture results. Significant differences in α diversities were noted when comparing both eyes of individuals with keratitis to control eyes (all P < 0.05), but no significant differences between the eyes of an individual with keratitis. Principal coordinate analysis plots confirmed this finding, demonstrating separation between either eye of patients with keratitis and controls (both P < 0.01), however not between eyes in patients with unilateral keratitis. Both eyes of individuals with keratitis had greater abundance of Pseudomonas compared with controls both on compositional analysis and linear discriminant analysis. Conclusions: Alterations in the OSM profile are detected in both eyes of individuals with unilateral keratitis compared with controls. Beyond the causative organism, a greater abundance of potential pathogens and lesser abundance of commensal organisms were found. Translational Relevance: The OSM profile is altered in both eyes of individuals with unilateral keratitis, which may lend insight into the role of the microbiome in the pathophysiology of disease.
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