What to know
VEHSS brings many data sources together in one place, where each is analyzed using consistent methods and outcomes are reported using uniform case definitions. Data types included in VEHSS below are available for researchers interested in results from individual data sets. VEHSS also combines data sources to produce VEHSS composite estimates, which provide more comprehensive estimates of major vision and eye health indicators than can be captured in any single data source.
Data types and sources
ACS is an annual survey that collects demographic, social, economic, and housing information.
BRFSS, the largest continuous health survey system in the world, collects data in all 50 states.
NHANES is designed to assess the health and nutritional status of U.S. adults and children.
NHIS data are used widely to monitor health trends and track progress toward achieving health goals.
NSCH examines the physical and emotional health of children from birth to 17 years.
The IRIS Registry is the nation’s first comprehensive eye disease clinical registry.
Analysis of Medicare data includes reimbursed claims for beneficiaries in Fee for Service plans.
Medicaid T-MSIS data are de-identified and person-level and include service utilization and payment.
MarketScan data includes claims information from persons with employer-sponsored insurance.
VSP data includes optometric exams and procedures, diagnoses, vision correction use, and more.
The Military Health System Data Repository captures and distributes health data worldwide.
Learn about the National Health and Aging Trends Study (NHATS), an in-person survey.