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Digital Eye-Tracking vs. Hand-Drawn lines: which marks toric lenses more accurately?

NCT ID NCT07710963

Knowledge-focused Sponsor: Thammasat University 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 17, 2026 · Last updated Jul 17, 2026

Summary

This study compares two methods for aligning toric intraocular lenses during cataract surgery: a digital image-guided navigation system (Verion) and the traditional manual corneal marking technique. Researchers measure how closely the manual mark matches the digital reference in 100 eyes. The goal is to see which approach provides more consistent alignment, which could affect visual outcomes after surgery.

What this could mean

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

Active substance
Verion Digital Marking system
What this could lead to
If digital navigation proves more accurate, it could improve the precision of toric lens placement and reduce the need for follow-up corrections after cataract surgery.
What could go wrong
This is a small, single-center study comparing a digital system to a standard manual technique. The results may not apply to all surgeons or settings, and the clinical benefit of any improved accuracy remains to be proven.

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 100 people

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

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

Oct 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

Cataract Patients at Thammasat University

Ages

18 to 90 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: * candidates for uncomplicated cataract surgery Exclusion Criteria: * irregular corneal astigmatism, lens subluxation, uveitis, glaucoma, trauma, history of retinal disease or optic neuropathy, previous intraocular or corneal surgery and corneal disease that could not be evaluated by the ARGOS or VERION systems

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Conditions

The condition(s) this trial relates to.

cataract

As listed by the trial registrant

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

Cataract surgeries

How to take part

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

  1. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  2. 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.

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