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Can a pair of glasses slash motorcycle crashes?

NCT ID NCT05466955

Prevention Sponsor: Queen's University, Belfast Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 13, 2026 · Last updated Aug 14, 2026 · Updated 1 time

Summary

This trial tests whether providing free corrective glasses to young motorcycle drivers with myopia (nearsightedness) can reduce the number of crashes and near-misses. Participants are university students in Ho Chi Minh City who drive regularly and have uncorrected or under-corrected vision. Their motorcycles will be fitted with cameras and sensors to record driving events over 18 months. The goal is to see if better vision leads to safer roads, which could encourage stricter vision standards for drivers.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Free eye glasses for un- or under-corrected myopia
What this could lead to
If successful, this could show that simple vision correction prevents road accidents, supporting stricter vision checks for drivers and wider access to glasses.
What could go wrong
The trial is relatively small and focused on young drivers in one city, so results may not apply broadly. Also, glasses may not be worn consistently, and the study is not designed to prove a long-term safety effect.

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

158 people

The number who actually took part.

Started

Sep 2024

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

18 to 23 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: Inclusion criteria for DAS fitting Students from selected universities will be eligible to participate if they: * are aged 18 to 23 years * have at least one year or more years of driving experience * are the sole user of their motorcycle * use their motorcycle as their primary means of transport * drive at least 25 km per week (self-report) * hold a valid driving license if their motorcycle has an engine capacity \>50cc Inclusion criteria for assignment to Intervention group Participants will be eligible for assignment to transition into the intervention group if, during the STABLE clinical examination, they are found to have: * presenting distance visual acuity \<= 6/12 in the better-seeing eye due to un- or under-corrected myopia, * vision correctable to 6/7.5 or better in both eyes * at least 0.5 Dioptre of myopia Exclusion Criteria: Individuals with any ocular or systemic abnormalities affecting vision will be ineligible to participate.

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Conditions

The condition(s) this trial relates to.

myopia

As listed by the trial registrant

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

Myopia

Contacts and locations

Locations

  • University of Medicine and Pharmacy at Ho Chi Minh City

    Ho Chi Minh City, Hong Bang Ward 11, 217, Vietnam

More trials for these conditions

Other studies related to the condition(s) this trial covers.