Studying Human Vision One Cone at a Time


Austin Roorda

(UC Berkeley)

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Date: April 9, 2014


Vision scientists employ a diversity of approaches in their quest to understand human vision – from studying behavior of cells in a dish to studying responses of humans to visual stimuli. A new generation of tools are helping to bridge these two approaches. First, adaptive optics removes the blur caused by optical imperfections, offering optical access to single cells in the human retina. Second, advanced eye tracking allows us to repeatedly probe targeted retinal locations. The combined system allows us to perform psychophysics with an unprecedented level of stimulus control and localization. In this talk I will review the technology and present our latest results on human color and motion perception.

Further Information:

Austin Roorda received his Ph.D. in Vision Science & Physics from the University of Waterloo, Canada in 1996. For over 15 years, Dr. Roorda has been pioneering applications of adaptive optics, including mapping of the trichromatic cone mosaic while a postdoc at the University of Rochester, designing and building the first adaptive optics scanning laser ophthalmoscope at the University of Houston, tracking and targeting light delivery to individual cones in the human eye at UC Berkeley, and being part of the first team to use AO imaging to monitor efficacy of a treatment to slow retinal degeneration. Since January 2005, he’s been at the UC Berkeley School of Optometry where he is the current chair of the Vision Science Graduate Program. He is a Fellow of the Optical Society of America and of the Association for Research in Vision and Ophthalmology and is a recipient of the Glenn A. Fry award, the highest research honor from the American Academy of Optometry.

Created: Wednesday, April 9th, 2014