Visual Capacity with One Eye at a Time


More than 50 percent of the brain is devoted to visual processing visual information. “The Mind’s Eye,” Rochester Review, Susan Hagen, March-April 2012,

I’m aphantasia. Some see out of one eye at a time from birth. Does that affect the weight or how much the brain is devoted to visual processing?

Nice to find the NYTimes article.


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If you can only see out of one eye, it affects much more than that, as you need binocular vision to perceive depth in the world. Read Fixing my gaze by Susan Barry, a neuroscientist, it’s fascinating:

For example, she writes about the first time she went out in the snow after gaining 3-D vision and how she was in awe at all the flakes falling around her rather than as a flat sheet in front of her.