The Mechanics of Lazy Eye
Dr. Agnes Wong and her team are working to better understand how and why amblyopia occurs and its effects on hand-eye coordination and depth perception. This information will contribute to improved rehabilitation for lazy eye.
Dr. Wong and her team were the first group to show that patients with lazy eye have impaired perception of images in real-world settings and that the condition has a detrimental effect on how a person’s vision guides her/his movements. The team has developed a virtual reality apparatus that lets them conduct detailed studies of how a person moves their eyes and limbs in response to what they see.
The team is also helping to explain how lazy eye influences the processing of visual signals. Human eyes make quick binocularly co-ordinated movements call saccades, which help the brain build a high resolution picture of a scene by moving the eyes to specific areas of interest. Dr. Wong’s team has demonstrated that children with lazy eye have abnormal saccades.
Dr. Wong’s research is support by grants from the Canadian Foundation for Innovation and the Canadian Institutes of Health Research.