Cognitive function
Conditions
Interventions
Experimental group:Participants can choose from a variety of frames, and the research team will customize the glasses according to their pupillary distance and prescription. Once the glasses are ready
Control Group:All participants randomly assigned to the control group will receive an eyeglass prescription, but free glasses will not be provided during the study. At the end of the study, the resear
Sponsors
West China School of Public Health, Sichuan University
Eligibility
Sex/Gender
All
Age
60 Years to 79 Years
Inclusion criteria
Inclusion criteria: 1. Registered as a rural resident (holding rural household registration); 2. Age from 60 to 79 years at the time of enumeration; 3. Resident in the household for >= 3 months and planning to reside in the local area for the trial duration; 4. Distance vision impairment (VI), defined as presenting visual acuity (VA) = 6/12 with spectacles, and/or near VI, defined as presenting near vision = 0.8 with spectacles; 5. Independent mobility with or without the support of a walking stick; 6. Mini-Mental State Examination, 2nd Edition, Simplified Chinese version (MMSE-2-SC) scores 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; 7. Willingness to participate, to be randomized to either study group, and to adhere to the protocol.
Exclusion criteria
Exclusion criteria: 1. Presence of glaucoma or visually significant cataract, or a history of surgical treatment for these or other major ocular conditions; 2. Consistent use of prescription spectacles and/or hearing aids 3. 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; 4. Failure on the hearing screening assessment, defined as hearing thresholds >=40 dB in both ears, as measured with the HearX HearTest.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cognitive function; | — |
Secondary
| Measure | Time frame |
|---|---|
| Cognitive functions in specific domains, including orientation, executive function, language/fluency, and memory;Falls risk;Vision-related quality of life;Health-related quality of life;Depressive symptoms;Physical activity ;Sleep quality;Social support and social networks;Cost-effectiveness of the intervention; | — |
Countries
China
Contacts
Public ContactZhou Huan
West China School of Public Health, Sichuan University
Outcome results
None listed