New lens design aims to stop nearsightedness before it starts in children
NCT ID NCT07682974
First seen Jul 06, 2026 · Last updated Jul 07, 2026 · Updated 1 time
Summary
This trial investigates whether a new type of eyeglass lens, called a With-the-Rule Astigmatic Defocus Lens, can prevent the development of myopia (nearsightedness) in children aged 6 to 9 who have low hyperopia (farsightedness). The lens creates a 'defocus' signal around the retina, which may slow eye growth and delay or prevent myopia. The study compares two versions of this lens to a standard single-vision lens over two years, measuring changes in eye length and refractive error.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- With-the-Rule Astigmatic Defocus Lens
- What this could lead to
- If effective, this lens could offer a simple, non-invasive way to delay or prevent the onset of myopia in at-risk children, reducing the need for glasses or contacts later.
- What could go wrong
- This is an early-stage study with a small number of participants, so results may not apply broadly. The lens may not prevent myopia or could cause discomfort or visual side effects.
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
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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 117 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jul 2026
An estimate. Start dates often move.
- Expected to finish
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Jul 2030
An estimate. End dates often move.
- Lead sponsor
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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
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6 to 9 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: * Children aged 6 to 9 with low hyperopia, regardless of gender * The refractive error is between 0 and 2.00D * The best corrected visual acuity of both eyes is ≥ 0.10 LogMAR * The subjects themselves and their guardians voluntarily participated Exclusion Criteria: * Systemic diseases or eye diseases * Received myopia control treatment through medication or optical * Any situation where participation is deemed unsuitable by the investigator
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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.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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.