Dr. Ehrlich is a population health and health services researcher whose work draws on epidemiology, survey research, and mixed-methods approaches. The focus of his research is on understanding and addressing the influence of vision impairment and low vision on health, disability, and quality-of-life, particularly among older adults, including the role of visual decline in cognitive, psychosocial, and physical wellbeing. He is the recipient of a K23 Career Development Award from the National Institutes of Health (K23EY027848) in which he is conducting survey development and validation research to improve the measurement of visual disability. He is also a Co-Investigator for several population-based panel studies of older adults funded by the National Institutes of Health, including the National Health and Aging Trends Study (NHATS; U01AG032947) and the Harmonized Diagnostic Assessment of Dementia for Longitudinal Aging Surveys in India (LASI-DAD; 2R01AG051125). His work in these studies is focused on development and implementation of measures of vision and eye health, as well as investigations focused on the influence of vision impairment on disability in older adults. The long-term objective of his research program is to maximize functioning, well-being, and optimal aging for older adults with chronic vision impairments.