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New laser technique aims to sharpen both near and far vision in one go

NCT ID NCT07512089

Symptom relief Sponsor: Zhongshan Ophthalmic Center, Sun Yat-sen University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 08, 2026 · Updated 2 times

Summary

This study tests if a newer laser method (PRESBYOND laser blended vision) is better than standard monovision LASIK for treating presbyopia, which makes it hard to see up close as you age. About 100 adults aged 40 to 55 will be randomly assigned to one of the two surgeries. They will have their vision checked over 6 months to see which method gives clearer sight at all distances.

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

About 100 people

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

Started

May 2026

Expected to finish

Jun 2028

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.

Ages

40 to 55 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 aged 40 to 55 years with presbyopia * Suitable candidates for LASIK surgery based on clinical evaluation * Stable refractive status for at least 1 year * Best corrected distance visual acuity within normal range * Willing and able to provide written informed consent * Willing to comply with study visits and follow-up Exclusion Criteria: * Previous ocular surgery * Corneal disease or abnormal corneal condition that may affect safety * Significant ocular disease affecting visual function * Severe dry eye or other ocular surface disorders * Systemic disease that may affect study participation * Inability to tolerate monovision or anisometropia * Any condition that the investigator considers unsuitable for the study

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Conditions

The condition(s) this trial relates to.

presbyopia refractive error

As listed by the trial registrant

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

Presbyopia Refractive error

How to take part

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

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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.

Contacts and locations

Locations

  • Zhongshan Ophthalmic Center

    RECRUITING

    Guangzhou, Guangdong, 510060, China

More trials for these conditions

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