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Susana T L Chung; Characteristics of fixation stability in amblyopia and macular disease. Invest. Ophthalmol. Vis. Sci. 2016;57(12):No Pagination Specified.
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Presentation Description :
Our eyes are constantly in motion even when we attempt to maintain stable fixation on a visual target. These involuntary eye movements during fixation are well characterized for people with normal vision and normal oculomotor control. For people with abnormal fixational eye movements, such as those with strabismic amblyopia or macular disease, the characteristics of their fixational eye movements are less well characterized. In this talk, I will summarize the findings of two studies in which fixational eye movements in human adults with amblyopia or macular disease were recorded using retinal imaging while participants monocularly fixated a fixation cross. Eye position data were recovered using a cross-correlation procedure. Characteristics of slow drifts and microsaccades for the two groups of participants were compared with their respective groups of age-matched controls with normal vision. These comparisons, along with the analyses using a multiple linear regression model to determine the primary factors that limit fixation stability and visual acuity in amblyopic eyes, or in eyes with macular disease, will be presented in the talk.
This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.
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