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Ocular Surface Microbiome

Diversity and Dynamic Stability of the Ocular Surface Microbiome

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02298881
Enrollment
80
Registered
2014-11-24
Start date
2013-07-31
Completion date
2021-05-01
Last updated
2021-05-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dry Eye Syndromes

Keywords

Dry Eye, Microbiome

Brief summary

The purpose of this study is to collect samples from the surface of eyelids to try to grow and identify bacteria or fungus that might be present, and to try to understand why people have dry eye symptoms.

Detailed description

Dry eye is a very common eye condition, which may or may not be caused by specific microorganisms that live on the surface of the eye. In this study, a combination of tissue culture and molecular biology techniques will be used to identify every microbe (bacteria, fungus, or virus) on the surface of eyes of people with dry eye syndrome, as well as a 'control' group of people who don't have dry eye disease.

Interventions

None listed

Sponsors

National Institutes of Health (NIH)
CollaboratorNIH
National Eye Institute (NEI)
CollaboratorNIH
University of Washington
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Subjects with ocular surface discomfort with an Ocular Surface Disease Index score of greater than 60 * Subjects with and Ocular Surface disease Index score less than 30 * Males and females age 18 or older

Exclusion criteria

* Contact lens wear * Use of oral or topical antibiotics in past 6 months * Use of prescription eye medication in past 6 months * Penetrating ocular or keratoplasty surgery in last 12 months * Children under the age of 18

Design outcomes

Primary

MeasureTime frame
To catalog the bacteria and other micro-organisms that are naturally found on the eye surface.6 months

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026