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Could a pair of glasses keep your mind sharp?

NCT ID NCT05458323

Disease control 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 study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing whether providing free glasses to older adults in India who need them can slow down age-related cognitive decline. Over 800 people aged 60 and older with uncorrected vision problems will be randomly assigned to receive glasses or not. Researchers will track changes in thinking, memory, falls, mood, and quality of life over three years.

What this could mean

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

Active substance
Free near and distance spectacles (glasses)
What this could lead to
If it works, this could show that correcting vision with glasses helps slow age-related cognitive decline and improve quality of life in older adults.
What could go wrong
This is a single trial in one region, and the effect may be small or not apply to other populations. Glasses alone may not prevent cognitive decline if other factors are at play.

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 820 people

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

Started

Jan 2024

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

60 years and older

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 1. Community dwelling 2. Residency a. Participants must plan to reside in the local area for the study duration 3. Presenting vision in the better eye due to uncorrected refractive error 1. Impaired distance vision less than 6/18 2. Near vision less than N6 at 40 cm 4. Willingness 1. to participate 2. to be randomized 3. to adhere to the protocol Exclusion criteria 1. Impaired baseline cognition a. HMSE score less than or equal to 18 2. Non-refractive causes of vision impairment 3. Severely impaired mobility 1. immobile 2. bedridden 3. wheelchair 4. using walker 4. Severe medical illness likely to limit the life span 1. Cancer 2. Heart disease 3. Stroke 4. HIV or AIDS 5. Chronic lung disease 6. Kidney disease 5. Hearing loss assessment 1. self-reported hearing impairment 2. inability to hear 3. fail in whisper test hearing screening(unable to repeat three out of six words)

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Conditions

The condition(s) this trial relates to.

Cognitive Dysfunction dementia refractive error

As listed by the trial registrant

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

Refractive errors

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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.

Contacts and locations

Locations

  • L V Prasad Eye Institute

    RECRUITING

    Hyderabad, Telangana, 500086, India

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