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Digital vs. manual marking for cataract surgery: which is more accurate?

NCT ID NCT07176897

Knowledge-focused Sponsor: Colvard Kandavel Eye Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study looked at 41 adults aged 50-90 who had cataract surgery with a special lens that corrects astigmatism. Doctors compared two methods of marking the eye before placing the lens: a digital marker and a conventional manual marker. The goal was to see which method gives better lens positioning and vision results.

What this could mean

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

What this could lead to
If digital marking proves more accurate, it could improve cataract surgery outcomes for people with astigmatism.
What could go wrong
This is a small, completed study with only 41 participants, so results may not apply to everyone. The difference in marking methods may not lead to better vision in practice.

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

41 people

The number who actually took part.

Started

Jun 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.

Who is studied

Los Angeles Ophthalmology General practice all ages \> 12 years of age.

Ages

50 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: * Adults (50-90 years of age) that were candidates for uncomplicated cataract surgery and planned to be implanted with toric IOLs (CCWOTx, Alcon Vision, LLC) Exclusion Criteria: * History of amblyopia * History of macular disease * History of glaucoma * History of corneal disease * History of prior corneal surgery * History of diabetes * History of ocular comorbidity that might hamper post operative visual acuity * History of previous ocular or refractive surgery with expected post-op VA worse than 0.10 logMAR * History of irregular corneal astigmatism and keratoconus, or severe/uncontrolled ocular surface disease or dry eye disease.

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Conditions

The condition(s) this trial relates to.

astigmatism cataract

As listed by the trial registrant

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

Astigmatism Cataract

Contacts and locations

Locations

  • Colvard-Kandavel Eye Center

    Encino, California, 91316, United States

  • Freedom Vision Surgery Center

    Encino, California, 91316, United States

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