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Bubble shield: new technique may save corneal cells during cataract surgery

NCT ID NCT06636279

Symptom relief Sponsor: Sichuan Provincial People's Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested a 'gas bubble technique' to reduce damage to the cornea's inner layer after cataract surgery in 80 patients with hard cataracts. The approach aimed to help corneal cells recover and reduce swelling. Results focused on cell loss and safety, offering a potential way to improve healing after surgery.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

80 people

The number who actually took part.

Started

Oct 2024

Finished

Mar 2025

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.

Ages

18 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Sign the informed consent approved by the Ethics Committee * 18-80 years of age * Catract patients with hard nucleus (LOSIII N Score ≥4) who are scheduled for phacoemulsification * Feasible for all visits and willing to follow instructions from the study investigator Exclusion Criteria: * Any ocular surgery history * Currently diagnosis of severe ocular disease and under medication * Uncontrolled systemic diseases

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Conditions

The condition(s) this trial relates to.

cataract corneal edema nuclear cataract

As listed by the trial registrant

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

Corneal endothelial damage following the hard nuclear cataract surgery

Contacts and locations

Locations

  • Sichuan Provincial People's Hospital

    Chengdu, Sichuan, 646000, China

More trials for these conditions

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