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LASIK showdown: which eye surgery gives sharper sight?

NCT ID NCT07078799

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study compares two LASIK techniques to see which one corrects nearsightedness and astigmatism better. 70 adults aged 22 and older with healthy eyes will have one eye treated with each method. The goal is to find out if one approach leads to sharper vision without glasses.

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 70 people

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

Started

Jan 2026

Expected to finish

Dec 2027

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

22 to 59 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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. Age 22 and older 2. People with healthy eyes: 1. No abnormal corneal shape 2. No excessively thin corneas 3. No eye diseases such as glaucoma or cataracts 3. Nearsightedness between -1.00 diopters and -10.00 diopters. 4. Subjects with less than or equal to 3.00 diopters of astigmatism. 5. Subjects must have similar levels of nearsightedness in each eye. Exclusion Criteria: 1. Subjects under the age of 22. 2. Subjects with excessively thin corneas. 3. Subjects with topographic evidence of keratoconus. 4. Subjects with ectactic eye disorders. 5. Subjects with autoimmune diseases. 6. Subjects who are pregnant or nursing at the time of surgery. (The FDA-approved labelling indications for LASIK specifically excludes patients who are pregnant or nursing. There is no strict prohibition not to become pregnant during the one year study period) 7. They can not be more than 1.5 diopter of difference between eyes. 8. Subjects with more than 3.00 diopters of astigmatism 9. Subjects with disimilar levels of astigmatism in each eye (They can not have more than 0.75 diopters of difference between eyes) -

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

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

  • Byers Eye Institute at Stanford University School of Medicine

    RECRUITING

    Palo Alto, California, 94303, United States

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