Free glasses may keep minds sharp in rural seniors

NCT ID NCT06836440

Disease control Sponsor: Yuju Wu Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Sep 15, 2026 · Updated 6 times

Summary

This study looks at whether giving free reading or distance glasses to older adults in rural areas can slow down memory and thinking problems. About 964 people aged 60-79 with poor eyesight but normal hearing and memory will take part. Half will get glasses, and the other half will not. Researchers will check their thinking skills over 3 years to see if better vision helps protect the brain.

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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 964 people

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

Started

Nov 2025

Expected to finish

Dec 2030

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 to 79 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Older adults who meet all of the following criteria will be eligible to participate in this study: * Registered as a rural resident (holding rural household registration); * Age from 60 to 79 years at the time of enumeration; * Resident in the household for \> = 3 months and planning to reside in the local area for the trial duration; * Distance vision impairment (VI, presenting visual acuity \[VA\] \< 6/12 in the better-seeing eye and improving to ≥ 6/7.5 or better in either eye with spectacle correction) and/or near VI (presenting near VA \< 6/12 at 40 cm when measured binocularly and improving to ≥ 6/7.5 or better in either eye with near correction); * Independent mobility with or without the support of a walking stick; * Chinese version of the Mini-Mental State Examination (C-MMSE) score above the following cut-offs (out of 30): \>17 for illiterate participants, \>20 for those with primary school education, \>22 for those with junior high school education, and \>23 for those with high school education or above. * Willingness to participate, to be randomized to either study group, and to adhere to the protocol Exclusion Criteria: * Presence of glaucoma or visually significant cataract, or a history of surgical treatment for these or other major ocular conditions; * Consistent use of prescription spectacles and/or hearing aids; * Serious medical illness likely to result in loss to follow-up. Those less severely affected by conditions such as hypertension and/or diabetes will be eligible; * Failure on the whispered voice hearing screening test in the better ear (unable to repeat \> = 3 out of 6 words whispered from behind the participant at a distance of 50 cm);

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Conditions

The condition(s) this trial relates to.

Cognition Disorders cognitive disorder presbyopia refractive error

As listed by the trial registrant

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

Cognition disorders

How to take part

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

The places running it

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

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Free glasses may keep minds sharp in rural seniors

What the study statuses mean