Survey of Sensory Impairment Indicators Among Adults Aged 65 Years and Older in Xinxing County

NCT07694505 | Not Yet Recruiting

• 1 other identifier: 2026KYPJ069
• Study Type: observational
• Target: 2,854
• Locations: 1 country
• Sites: 1

Brief Summary

This cross-sectional population-based survey will be conducted among residents aged 65 years and older in Xinxing County, Yunfu, Guangdong Province, China. The study will use standardized eye examinations, visual acuity and refractive assessment, anterior segment examination, hearing screening and questionnaires to estimate effective refractive error coverage, effective cataract surgical coverage, effective hearing technology coverage, common eye disease status, and dual sensory impairment among older adults. The findings are intended to provide evidence for primary-level eye and hearing health services.

Conditions

Visual Impairment; Hearing Loss; Dual Sensory Impairment; Cataract; Refractive Error

Keywords

Effective refractive error coverage; Effective cataract surgical coverage; Effective hearing technology coverage; Older adults; Population-based survey; Cross-sectional study; SENSIIS; WHOears; Xinxing County

Outcome Measures

Primary Outcomes (3)

• Effective Refractive Error Coverage

  Effective refractive error coverage among the surveyed population, calculated at the person level as the proportion of participants with met refractive correction need among all participants with met, under-met, or unmet refractive correction need. The primary threshold will be worse than 6/12 in the better eye, corresponding to decimal visual acuity less than 0.5, with improvement to 6/12 or better through habitual correction, pinhole, or refraction used to classify met, under-met, and unmet need.

  At the cross-sectional survey visit during the 2026-06 to 2026-12 data collection period.

• Effective Cataract Surgical Coverage

  Effective cataract surgical coverage among the surveyed population, calculated at the person level as the proportion of participants with operated cataract and a good visual outcome among all participants with operated or operable cataract. Good visual outcome is defined as presenting visual acuity of 6/12 or better; the final operable cataract threshold should be confirmed before release.

  At the cross-sectional survey visit during the 2026-06 to 2026-12 data collection period.

• Effective Hearing Technology Coverage

  Effective hearing technology coverage among the surveyed population, calculated as the proportion of participants with moderate or greater hearing loss who regularly use hearing technology and report perceived benefit from its use. Hearing loss classification will be based on WHOears app screening and study questionnaire data.

  At the cross-sectional survey visit during the 2026-06 to 2026-12 data collection period.

Secondary Outcomes (3)

• Prevalence and Correction Status of Common Eye Diseases

  At the cross-sectional survey visit during the 2026-06 to 2026-12 data collection period.

• Prevalence of Dual Sensory Impairment

  At the cross-sectional survey visit during the 2026-06 to 2026-12 data collection period.

• Feasibility and Satisfaction of the SENSIIS System for Primary-Level Vision and Hearing Screening

  At or after the cross-sectional survey visit during the 2026-06 to 2026-12 data collection period.

Study Arms (1)

Adults aged 65 years and older in Xinxing County

Residents aged 65 years and older who meet eligibility criteria and provide written informed consent will undergo standardized visual, ocular, hearing, and questionnaire assessments during the cross-sectional survey.

Eligibility Criteria

• Age: 65 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Community-dwelling residents aged 65 years and older in Xincheng Town, Xinxing County, Yunfu, Guangdong Province, China, covered by the national basic public health service system.

You may qualify if:

• Aged 65 years or older.
• Voluntarily participates in the study and provides signed informed consent.

You may not qualify if:

• Unable to cooperate with study-related examinations, including because of disability, communication barriers, or other reasons.
• Has severe systemic disease that may affect study examinations or make participation potentially hazardous to health.
• Considered by the investigator to be unsuitable for participation in the study.

Sponsors & Collaborators

• Zhongshan Ophthalmic Center, Sun Yat-sen University: lead

Study Sites (1)

Xinxing County

Yunfu, Guangdong, China

Location

MeSH Terms

Conditions

Vision Disorders; Hearing Loss; Cataract; Refractive Errors

Condition Hierarchy (Ancestors)

Sensation Disorders; Neurologic Manifestations; Nervous System Diseases; Eye Diseases; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Hearing Disorders; Ear Diseases; Otorhinolaryngologic Diseases; Lens Diseases

Study Officials

• Lingyi Liang, MD

  Zhongshan Ophthalmic Center, Sun Yat-sen University

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Xiaotong Han

CONTACT

086-15999975559; hanxiaotong@gzzoc.com

Study Design

• Study Type: observational
• Observational Model: ECOLOGIC OR COMMUNITY
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 2, 2026
• First Posted: July 10, 2026
• Study Start: July 6, 2026
• Primary Completion (Estimated): August 31, 2026
• Study Completion (Estimated): December 31, 2026
• Last Updated: July 10, 2026

Record last verified: 2026-07

Data Sharing

• IPD Sharing: Will not share

Locations

CN (1)