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Dry EyeNCT04413370

Dry Eye Screening and Referral System

An observational study of Dry Eye, run by Sun Yat-sen University at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Dry eye is one of the most common ocular surface diseases. Its pathogenic factors are related to multiple etiology. Because of the complexity of the pathogenesis of dry eye, the diversity of related examinations, and the inconsistency of symptoms and signs of dry eye patients, the diagnosis of dry eye has higher… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Dry Eye
What is being tested?
Dry eye diagnostic test
How many people
1,273 participants
Where
1 siteChina
Study dates
6 Jan 2020to 31 Jul 2024
How long will I take part?
1 Day
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Subjects who are equal or over 18 years old with or without dry eye symptoms and signs.

Who may be able to join

  • Subjects whose age are greater than or equal to 18 years old;
  • Subjects who can cooperate with the inspection;
  • Subjects who agree to participate in the study and sign the consent form.

Who cannot join

  • Subjects who cannot do the inspection.
  • Subjects who suffer from diseases that compromise the inspection.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Zhongshan Ophthalmic Center

    Guangzhou, Guangdong, 510632

Other trials in China

About this study

Official title: The Development of Artificial Intelligence Dry Eye Screening and Referral System

Dry eye is one of the most common ocular surface diseases. Its pathogenic factors are related to multiple etiology. Because of the complexity of the pathogenesis of dry eye, the diversity of related examinations, and the inconsistency of symptoms and signs of dry eye patients, the diagnosis of dry eye has higher requirements on the professional technology and examination equipment of ophthalmologists.

The purpose of this study is to establish a case-control cohort of dry eye patients. Multimodal data will be collected from participants, including medical history information, ocular surface disease index scale (OSDI), anterior segment photography, and treatment outcome of dry eye patients. The correlation between the characteristics of anterior segment images and dry eye diagnosis will be explored by artificial intelligence algorithms. The purpose of this study was to develop an artificial intelligence dry eye screening and referral system.

Conditions
Dry Eye
Being tested
Dry eye diagnostic test
Medical subject headings
Dry Eye Syndromes

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Dry eye diagnostic testDiagnostic test

    The artificial intelligent dry eye screening platform

Study groups in NCT04413370
Study groupRoleWhat they receive
Severe GroupThis group of subjects needed a referral to the hospital for further treatments.
Receives: Diagnostic Test: Dry eye diagnostic test
Mild groupThis group of subjects was diagnosed with dry eye but can use artificial tears instead of further treatment.
Receives: Diagnostic Test: Dry eye diagnostic test
Follow-up groupThis group of subjects had no dry eye symptoms and signs and belonged to the normal control group.
Receives: Diagnostic Test: Dry eye diagnostic test

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Area under the curve (severe)

    AUC values for predicting whether subject need to be referral or not.

    Measured: up to 1 month

Secondary outcomes (2)
  1. Area under the curve (each group)

    AUC values for predicting whether subject can be accurately grouped into each of the four groups.

    Measured: up to 1 month

  2. Accuracy, true positive rate, and true negative rate

    The performance of this artificial platform.

    Measured: up to 1 month

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Jun 2020
  2. Study start6 Jan 2020
  3. Primary completion31 Jul 2024
  4. Study completion31 Jul 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
1,273 participants (actual)
Target duration
1 Day
IDs, dates and publications
ClinicalTrials.gov ID
NCT04413370
Sponsor's protocol ID
Dry eye screening system
Status last verified
Aug 2024
First submitted
28 May 2020
Last updated
23 Sep 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Dry Eye, run by Sun Yat-sen University at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 23 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Area under the curve (severe) (time frame: up to 1 month). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Sep 2026.

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