New glasses could slow Kids' nearsightedness over 3 years

NCT ID NCT04947735

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study tests special glasses with Diffusion Optics Technology to see if they can slow the progression of nearsightedness (myopia) in children. About 200 kids who completed a previous study will wear these glasses for up to 3 years. Researchers will measure changes in eye length and prescription to check safety and effectiveness.

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 200 people

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

Started

Jul 2021

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

6 to 17 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: * Previously a successfully completed participant in the CYPRESS study (NCT03623074) and having not exited this study for more than 30 days; * Agree to wear the assigned spectacles constantly except for sleeping, swimming, or other activities in which spectacle wear would be dangerous or otherwise not possible (minimum of 10 hours per day); * Willingness to participate in the trial for up to 3 years without contact lens wear; * The subject's parent(s) or legal guardian(s) must read, understand and sign the Statement of Informed Consent and receive a fully executed copy of the form. Exclusion Criteria: * Known allergy to proparacaine, tetracaine, or tropicamide.

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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.

Contacts and locations

Locations

  • Advanced Eyecare PC

    Raytown, Missouri, 64133, United States

  • Centre for Ocular Research and Education

    Waterloo, Ontario, N2L 3G1, Canada

  • Dr. Bridgitte Shen Lee (PI)

    Houston, Texas, 77205, United States

  • Dunes Eye Consultants

    Dakota Dunes, South Dakota, 57049, United States

  • Golden Optometric Group

    Whittier, California, 90606, United States

  • Haik Humble

    West Monroe, Louisiana, 71291, United States

  • Kannarr Eye Care

    Pittsburg, Kansas, 66762, United States

  • Omega Vision Center, PA

    Longwood, Florida, 32779, United States

  • SUNY School of Optometry

    New York, New York, 10036, United States

  • Sacco Eye Group

    Vestal, New York, 13850, United States

  • Total Eye Care

    Memphis, Tennessee, 38119, United States

  • William J Bogus, OD, FAAO

    Salt Lake City, Utah, 84106, United States

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