New glasses could slow Kids' nearsightedness over 3 years
NCT ID NCT04947735
First seen Jun 27, 2026 · 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.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2021
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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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
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6 to 17 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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
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Advanced Eyecare PC
Raytown, Missouri, 64133, United States
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Centre for Ocular Research and Education
Waterloo, Ontario, N2L 3G1, Canada
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Dr. Bridgitte Shen Lee (PI)
Houston, Texas, 77205, United States
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Dunes Eye Consultants
Dakota Dunes, South Dakota, 57049, United States
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Golden Optometric Group
Whittier, California, 90606, United States
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Haik Humble
West Monroe, Louisiana, 71291, United States
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Kannarr Eye Care
Pittsburg, Kansas, 66762, United States
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Omega Vision Center, PA
Longwood, Florida, 32779, United States
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SUNY School of Optometry
New York, New York, 10036, United States
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Sacco Eye Group
Vestal, New York, 13850, United States
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Total Eye Care
Memphis, Tennessee, 38119, United States
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William J Bogus, OD, FAAO
Salt Lake City, Utah, 84106, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Two toric lenses go head to head in vision test
- Eye scans as a window to the body: study probes retinal imaging across diseases
- Lens showdown: which contact lens wins in dim light?
- Myopia glasses may keep working even after kids take them off
- Can glasses that slow nearsightedness also reshape a Child's astigmatism?