02/24/2026
The research unit in the Department of Ophthalmology at St. Michael’s Hospital has successfully deployed an innovative new technology that could improve our understanding of vision-threatening retinal vascular diseases like diabetic retinopathy.
Developed in Canada, the Zilia Ocular camera is a non-invasive retinal imaging device that takes detailed images of the retina and uses advanced light technology and AI to measure oxygen levels directly in retinal tissue. Most existing tools only look at eye structure or blood flow while the Zilia Ocular camera gives insight on how well oxygen is reaching and being used by the eye tissue.
Following Health Canada approval, St. Michael’s is the first in Canada to deploy this camera.
Dr. David Wong, a vitreoretinal surgeon at St. Michael’s Hospital, is leading a study examining how non-invasive retinal oxygen measurements like this ocular camera can enhance our understanding and management of vision-threatening conditions.
“Current imaging tells us where blood is flowing, but oxygenation may give us a clearer picture of which retinal areas are healthy, at risk, or beyond recovery,” said Dr. Wong.
“This study aims to help refine how we assess disease severity and treatment response.”