Skip to page content
Toggle Menu
Site-wide navigation
Topics
Trending
Warfare and Military Operations
International Trade
Military Technology
Artificial Intelligence
Ukraine
Topics
Children, Families, and Communities
Cyber and Data Sciences
Education and Literacy
Energy and Environment
Health, Health Care, and Aging
Homeland Security and Public Safety
Infrastructure and Transportation
International Affairs
Law and Business
National Security
Science and Technology
Workers and the Workplace
All Topics
Research & Commentary
Experts
About
Research Divisions
RAND's divisions conduct research on a uniquely broad front for clients around the globe.
U.S. research divisions
RAND Army Research Division
RAND Education, Employment, and Infrastructure
RAND Global and Emerging Risks
RAND Health
RAND Homeland Security Research Division
RAND National Security Research Division
RAND Project AIR FORCE
International research divisions
RAND Australia
RAND Europe
Services & Impact
Careers
Graduate School
Subscribe
Give
Cart
Toggle
Search
Search terms
Submit
RAND
Research & Commentary
Browse by Author
E
Leon Ellwein — Publications
Leon Ellwein — Publications
Psychometric Properties of the National Eye Institute-Refractive Error Quality of Life Instrument
2003
Use of Eye Care Services Among the 1991 Medicare Population
1996
