Effect of Vision Centers on Access to Eye Care and Eye Health Outcomes

Part of paid clinical trials in San Francisco, California.

Sponsor
University of California, San Francisco
Study ID
NCT07227714
Status
Not Yet Recruiting

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Conditions

  • Cataract Surgery
  • Eye Care
  • Eyecare Visits
  • Glasses
  • Primary Eye Care
  • Vision Center

Eligibility Criteria

Sex
ALL
Age
N/A - N/A
Healthy Volunteers
Accepted

Interventions

  • Establishment of a vision center — OTHER
    The establishment of a vision center includes building a fixed center, and equipping it with a trained vision technician to provide basic eye care services such as refractive error correction, spectacle dispensing, basic diagnosis for common conditions, as well as referrals for advanced care at base hospitals. The establishment of VCs will be actively publicized in the neighboring communities through promotion by local stakeholders, teachers, community workers, village leaders, health workers, and radio announcements prior to establishment. Additional outreach activities include posters and loudspeaker announcements in the communities the day before operations begin.

Study Details

This cluster-randomized trial aims to evaluate the effect of vision centers on access to eye care and eye health outcomes in South Asia. The main questions it aims to answer are: 1. Do vision centers improve effective refractive error coverage? 2. Do vision centers increase eye care center utilization? 3. Do vision centers improve visual acuity of the population? Researchers will compare outcomes in communities randomized to have a vision center is established with communities randomized to delay establishment of a vision center. Outcomes will be assessed through population-based surveys at baseline and after two years as well as through hospital records collected throughout the study period.

Key Dates

Start date
Aug 1, 2026
Status verified
May 2026
Primary completion
Oct 1, 2028
Completion
Dec 1, 2028

Study Design

Enrollment
40,000 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH

Arms

  • Experimental: Immediate establishment of a vision center
    The intervention arm will include the establishment of a fixed vision center equipped with trained vision technicians to provide basic eye care services and referrals to higher care.
  • No Intervention: Delayed establishment of a vision center
    The control arm will receive no intervention during the study period. The establishment of a vision center will occur after endline data collection, if hospital interest and resources remain adequate.

Primary Outcome Measure

Effective refractive error coverage [ Time Frame: 2 years ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
University of California, San FranciscoSan FranciscoCalifornia94158-

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By research site
University of California, San Francisco· San Francisco, CA

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