Evaluation of Ocular Surface in Hemodialysis Patients by Ocular Surface Analyzer

April 17, 2022 updated by: XiaoYong Liu
We clinically observed that some hemodialysis patients had corneal epithelial dryness, shedding, edema, and persistent epithelial nonunion after ocular surgery, which seriously affected the effect of surgery, and it is necessary to study the ocular surface characteristics of hemodialysis patients. In this study, we examined the ocular surface and analyzed and investigated the characteristics of the ocular surface in hemodialysis patients to provide a basis for ocular surface intervention or treatment in hemodialysis patients before ocular surgery in clinical practice.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study is a clinical case-control study. A total of 36 hemodialysis patients and 36 normal subjects were randomly selected from the Nephrology Department of the First Affiliated Hospital of Jinan University .All the subjects in the hemodialysis group (n = 36, 72 eyes) and the normal group (n = 36, 72 eyes) were investigated with the OSDI scale, and then bilateral ocular surface examinations were performed with Keratograph5M eye surface comprehensive analyzer. Non-invasive tear meniscus height (NITMH), first tear film break-up time (FTBUT), average tear film break-up time (ATBUT), dry eye severity grade, tear film lipid layer analysis (distribution and color), tear film lipid layer thickness grade, meibomian gland opening blocking site, meibomian gland opening blocking analysis, meibomian gland opening secretion oil character score, eye redness index analysis (conjunctiva, ciliary shape), and meibomian gland absence area score were recorded.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
36

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Guangdong
      • Guangzhou, Guangdong, China, 510630
        • The First Affiliated Hospital of Jinan University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

25 years to 72 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

A total of 36 hemodialysis patients and 36 normal subjects were randomly selected from the Nephrology Department of the First Affiliated Hospital of Jinan University .

Description

the hemodialysis group Inclusion Criteria:

  • Older than 18
  • Hemodialysis patient
  • The subject understands the purpose of this clinical trial and agrees to sign an informed consent form.

the hemodialysis group Exclusion Criteria:

  • Previous history of ocular trauma or surgery
  • History of wearing contact lenses
  • Can Not Stop the use of dry eye caused by drugs and other drugs may directly affect the stability of tear film tears
  • Eyelid abnormalities (such as eyelid insufficiency, entropion and ECTROPION, tumor, severe trichiasis)
  • There have been peritoneal dialysis, kidney transplant surgery patients.

the normal group Inclusion Criteria:

  • Older than 18
  • Healthy people do not have other systemic diseases, such as diabetes and hypertension
  • The subject understands the purpose of this clinical trial and agrees to sign an informed consent form.

the normal group Exclusion Criteria:

  • Previous history of ocular trauma or surgery
  • History of wearing contact lenses
  • Can Not Stop the use of dry eye caused by drugs and other drugs may directly affect the stability of tear film tears.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
the hemodialysis group
investigated with the OSDI scale, and then bilateral ocular surface examinations were performed with Keratograph5M eye surface comprehensive analyzer. Non-invasive tear meniscus height (NITMH), first tear film break-up time (FTBUT), average tear film break-up time (ATBUT), dry eye severity grade, tear film lipid layer analysis (distribution and color), tear film lipid layer thickness grade, meibomian gland opening blocking site, meibomian gland opening blocking analysis, meibomian gland opening secretion oil character score, eye redness index analysis (conjunctiva, ciliary shape), and meibomian gland absence area score were recorded.
Device: ocular surface analyzer
Using ocular surface analyzer for Inspection
the normal group
investigated with the OSDI scale, and then bilateral ocular surface examinations were performed with Keratograph5M eye surface comprehensive analyzer. Non-invasive tear meniscus height (NITMH), first tear film break-up time (FTBUT), average tear film break-up time (ATBUT), dry eye severity grade, tear film lipid layer analysis (distribution and color), tear film lipid layer thickness grade, meibomian gland opening blocking site, meibomian gland opening blocking analysis, meibomian gland opening secretion oil character score, eye redness index analysis (conjunctiva, ciliary shape), and meibomian gland absence area score were recorded.
Device: ocular surface analyzer
Using ocular surface analyzer for Inspection

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Non-invasive tear meniscus height
Time Frame: 1year
Maximum and minimum of Non-invasive tear meniscus height in millimetre，higher scores mean a better outcome.
1year
first tear film break-up time
Time Frame: 1year
Maximum and minimum of first tear film break-up time in Seconds，higher scores mean a better outcome.
1year
average tear film break-up time
Time Frame: 1year
Maximum and minimum of average tear film break-up time in Seconds，higher scores mean a better outcome.
1year
dry eye severity grade
Time Frame: 1year
Maximum and minimum of dry eye severity grade，higher scores mean a worse outcome.
1year
tear film lipid layer analysis (distribution and color)
Time Frame: 1year
Maximum and minimum of tear film lipid layer analysis (distribution and color)，higher scores mean a better outcome.
1year
tear film lipid layer thickness grade
Time Frame: 1year
Maximum and minimum of tear film lipid layer thickness grade,higher scores mean a better outcome.
1year
meibomian gland opening blocking site
Time Frame: 1year
Maximum and minimum of meibomian gland opening blocking site，higher scores mean a worse outcome.
1year
meibomian gland opening blocking analysis
Time Frame: 1year
Maximum and minimum of meibomian gland opening blocking analysis，higher scores mean a worse outcome.
1year
meibomian gland opening secretion oil character score
Time Frame: 1year
Maximum and minimum of meibomian gland opening secretion oil character score，higher scores mean a worse outcome.
1year
eye redness index analysis (conjunctiva, ciliary shape)
Time Frame: 1year
Maximum and minimum of eye redness index analysis (conjunctiva, ciliary shape)，higher scores mean a worse outcome.
1year
meibomian gland absence area score
Time Frame: 1year
Maximum and minimum of meibomian gland absence area score，higher scores mean a worse outcome.
1year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
XiaoYong Liu

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2021

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2021

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 26, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 26, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 2, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 19, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 17, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2021JN

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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