Special lenses could slow worsening eyesight in kids
NCT ID NCT05888792
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new type of spectacle lens (DG2) designed to slow down nearsightedness (myopia) in children whose vision is getting worse quickly. 118 children aged 4–13 will wear these lenses for 4 years. Researchers will measure changes in their eye prescription and eye length every 6 months to see if the lenses effectively control myopia progression.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Defocus Incorporated Multiple Segments spectacle lens (DG2)
- What this could lead to
- If successful, these lenses could offer a simple, non-invasive way to slow worsening nearsightedness in children, potentially reducing the risk of serious eye diseases later in life.
- What could go wrong
- This is a relatively small study (118 children) and results may not apply to all kids. The lenses only slow progression, not stop or reverse it, and long-term benefits beyond 4 years are unknown.
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 118 people
The number the study aims to enrol. It can still change while the study runs.
- Started
-
Jul 2023
- Expected to finish
-
Dec 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
-
4 to 12 years
- Sex
-
Anyone
- Healthy volunteers
-
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: * SER: -0.75D or below in both eyes * Documented history of fast progressing myopia, either in SER or AL * SER progression: 0.50D/year or more * AL elongation: 0.27mm/year or more * For children aged 4-6 years without past prescription forms, * 4-5 years old: myopia of -0.75D or below in both eyes * 6 years old: myopia of -1.25D or below in at least one eye, with the other eye -0.75D or below * Best-corrected visual acuity (VA) in both eyes: * 4 - 6 years old: 0.20 logMAR (or its equivalent) or better * 7-12 years old: 0.00 logMAR (or its equivalent) or better * Acceptance of random group allocation and the masked study design * Anisometropia of 1.50 D or less * Astigmatism of 2.00 D or less Exclusion Criteria: * Strabismus and binocular vision abnormalities * Ocular and systemic abnormalities * Prior experience of myopia control
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Myopia are added.
Genom att skicka in godkänner du våra Användarvillkor
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
-
School of Optometry, The Hong Kong Polytechnic University
Hung Hom, Hong Kong
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can AI protect Kids' eyesight where eye doctors are scarce?
- 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?