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Eyeliner may dry your eyes: new study investigates

NCT ID NCT05632887

Knowledge-focused Sponsor: Zhongnan Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether using eyeliner can lead to dry eyes. Researchers will compare tear production, tear film stability, and tear composition between 80 people who use eyeliner regularly and those who don't. The goal is to understand if eyeliner ingredients change tears and increase dry eye risk, helping with prevention and early treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 80 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2022

Expected to finish

Sep 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The main population of our study is the young women who do not have other diseases that affect the health of eye surface and use or do not use eyeliner.

Ages

20 to 35 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * People aged 20-35 who use eyeliner or do not use eyeliner . * People who use eyeliner have used it for ≥ 1 year; Frequency ≥ 3 times/week. Exclusion Criteria: * Other serious systemic diseases. * Other systemic diseases related to ocular surface, such as rheumatoid arthritis, systemic lupus erythematosus, Sjogren's syndrome and other immune system diseases or other eye diseases, history of eye surgery and trauma. * Lactating women or pregnant women. * Use electronic products for more than 4 hours every day. * Patients with circadian rhythm disorder. * People with radiation exposure history. * Non permanent residents in Wuhan.

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Conditions

The condition(s) this trial relates to.

dry eye syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Dry eye

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Zhongnan Hospital of Wuhan University

    RECRUITING

    Wuhan, Hubei, 430071, China

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Other studies related to the condition(s) this trial covers.