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Can 3D screens sharpen cataract surgery for very nearsighted eyes?

NCT ID NCT06264830

Knowledge-focused Sponsor: National Taiwan University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time

Summary

This trial asks whether using a 3D visualization system during cataract surgery helps surgeons operate more smoothly in people with high myopia (very nearsighted eyes). It compares the 3D system to a traditional optical microscope, measuring how often the surgeon needs to adjust focus during the operation. The study includes 40 adults with high myopia and age-related cataracts. The goal is to see if the 3D approach reduces focus changes, which could improve surgical precision and outcomes.

What this could mean

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

Active substance
3D visualization system (Alcon NGENUITY) compared with standard optical microscope during cataract surgery
What this could lead to
If the 3D system reduces the need for focus adjustments, it could make cataract surgery more efficient and precise for people with high myopia.
What could go wrong
This is a small, early-stage study with only 40 participants, so results may not apply broadly. The 3D system may not offer a clear advantage over the traditional microscope.

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

40 people

The number who actually took part.

Started

Jul 2024

Finished

Dec 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

20 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: 1. High myopia (axial length of 26 millimeters or more). 2. Presence of clinically significant age-related nuclear cataract requiring surgery, assessed using the International Classification System for Cataract (Lens Opacities Classification System III, LOC III), with a graded score indicating nuclear cataract (LOC III NC/NO grade 3-5). 3. Participants must be 20 years of age or older. Exclusion Criteria: 1. The target eye has undergone vitrectomy surgery. 2. The target eye has undergone corneal refractive surgery. 3. Presence of corneal diseases such as corneal dystrophy, corneal trauma, corneal scarring, corneal ulcers, or clinically significant corneal softening that significantly affects the clarity of cataract surgery. 4. Complicated cataracts with features such as extreme hardness, complex composition, zonular laxity, lens dislocation, extensive capsular fibrosis, or those falling under the international cataract classification standards LOCIII NO/NC6 or C4-C5 or P4-P5. 5. Presence of other non-myopia-related eye diseases significantly affecting the complexity of surgery, such as adhesive uveitis causing adhesions, corneal damage due to trauma or lens dislocation, structural changes and adhesions due to intraocular inflammation, or severe uncorrected strabismus affecting eye alignment.

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Conditions

The condition(s) this trial relates to.

cataract degenerative myopia

As listed by the trial registrant

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

Cataract High myopia

Contacts and locations

Locations

  • Department of Ophthalmology, National Taiwan University Hospital

    Taipei, 100, Taiwan

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