Dr. Ellen Freeman

Dr. Ellen Freeman
Dr. Ellen Freeman

BA, MSc, PhD

600 Peter Morand, Room 301H
613-562-5800 ext. 8439


Ellen Freeman is a professor in the School of Epidemiology and Public Health and a scientist at the Ottawa Hospital Research Institute.

Dr. Freeman received her PhD in epidemiology from the Johns Hopkins School of Public Health where she trained with Dr. Sheila West in the field of ocular epidemiology. During Dr. Freeman’s training, she was a recipient of a 4-year training award from the National Institute on Aging. Dr. Freeman then spent 9 years at the Université de Montréal where she was the recipient of two salary awards from the Fonds de Recherche en Santé du Québec.

Dr. Freeman’s research program focuses on the epidemiology of eye disease and vision loss. She currently is the principal investigator of a grant from the Canadian Institutes of Health Research looking at risk factors for glaucoma in the Canadian Longitudinal Study on Aging, a cohort of over 30,000 people.

Dr. Freeman has published widely including papers in leading ophthalmology and aging journals. 

Selected publications

  1. A Grant, MH Roy-Gagnon, J Bastasic, Akshay Talekar, M Jessri, G Li, R Buhrmann, EE Freeman.  Alcohol consumption, genetic risk, and intraocular pressure and glaucoma:  The Canadian Longitudinal Study on Aging.  Invest Ophthalmol Vis Sci 2023 Jul 3;64(10):3.
  2. G Leung, A Grant, G Li, EE Freeman.  Systemic antihypertensive medications and glaucoma:  Systematic review and meta-analysis.  Am J Ophthalmol. 2023, Mar 24;255:7-17.
  3. A Grant, MJ Kergoat, EE Freeman.  Air pollution and the onset of balance problems:   The Canadian Longitudinal Study on Aging. Int J Hyg Environ Health, 2023 Mar;248:114114.
  4. EE Freeman, J Bastasic, A Grant, G Leung, G Li, R Buhrmann, MH Roy-Gagnon.  Inverse association between APOE ε4 and glaucoma modified by systemic hypertension:  The Canadian Longitudinal Study on Aging. Invest Ophthalmol Vis Sci, Dec2022; 63(13): 9.
  5. A Grant, G Leung, EE Freeman.  Global associations of ambient air pollution and glaucoma:  A systematic review and meta-analysis. Invest Ophthalmol Vis Sci 2022Aug 2;63(9):17.
  6. A Grant, G Leung, MJ Aubin, MJ Kergoat, Gisele Li, EE Freeman.  Fine particulate matter and age-related eye disease:The Canadian Longitudinal Study on Aging.  Invest Ophthalmol Vis Sci., 2021;62(10):7.
  7. Z Kahiel, MJ Aubin, R Buhrmann, MJ Kergoat, EE Freeman.  Visual impairment, eye disease, and the onset of balance problems:  The Canadian Longitudinal Study on Aging.  American Journal of Ophthalmology, 2021 Nov; 231: 170-178. 

Research interests

  • Ocular Epidemiology
  • Aging