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Seeing inside the eye during surgery: a new imaging tool could sharpen lens disease care

NCT ID NCT07741370

Diagnosis Sponsor: Second Affiliated Hospital, Zhejiang University, School of Medicine 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 03, 2026 · Last updated Aug 06, 2026 · Updated 3 times

Summary

This study looks at whether a special imaging technique called intraoperative optical coherence tomography (iOCT) can help doctors better diagnose and treat lens diseases like cataracts and lens dislocation. Researchers will review data from 1,200 patients who had lens surgery to see if iOCT images taken during the operation match or improve the diagnosis made before surgery. The goal is to find out if this real-time imaging tool can make lens surgery safer and more effective.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Intraoperative optical coherence tomography (iOCT) imaging device
What this could lead to
If successful, this could establish iOCT as a standard tool during lens surgery, potentially improving surgical precision and outcomes for cataract and lens dislocation patients.
What could go wrong
This is a retrospective study, so it can only show associations, not proof. The benefits of iOCT may vary by surgeon and case, and the technology may not change outcomes for all patients.

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 1,200 people

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

Started

Mar 2024

Expected to finish

Dec 2034

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

Adult patients aged 18 years or older who underwent lens surgery for lens opacity or abnormal lens position between March 1, 2024 and March 1, 2026 at the participating hospitals. Eligible surgical eyes will be identified retrospectively from medical records and classified according to whether intraoperative optical coherence tomography was used during surgery.

Ages

18 years and older

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: * Aged 18 years or older. * Presence of lens opacity or abnormal lens position. * Visual impairment affecting activities of daily living. * Met the indications for lens surgery. * Underwent lens surgery. Exclusion Criteria: * Active intraocular inflammation. * Uncontrolled systemic disease, use of medications that could significantly affect surgery, or other standard contraindications to lens surgery. * Incomplete or unreliable key preoperative examination data, including ocular biometry. * Inadequate image quality due to poor fixation or other causes, rendering the images unsuitable for analysis. * Incomplete intraoperative OCT recordings, such as interrupted recording or severe image freezing, affecting data evaluation. * Other psychological or physical conditions that might interfere with study participation.

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Conditions

The condition(s) this trial relates to.

Capsule Opacification cataract lens disorder lens subluxation senile cataract

As listed by the trial registrant

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

Age-related cataract Cataract Complicated cataract Lens diseases Lens subluxation

Contacts and locations

Locations

  • Second Affiliated Hospital, Zhejiang University School of Medicine

    Hangzhou, Zhejiang, 310009, China

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