Susan Barry

“Just as I could not imagine a world in stereo depth, an individual with normal normal stereopsis cannot experience the worldview of a person who has always lacked steropsis. This may be surprising because you can eliminate clues from stereopsis simply by closing one eye. What's more, many people do not notice a great difference when viewing the world with one eye or two. When a normal binocular viewer closes one eye, however, he or she still uses a lifetime of past visual experiences to re-create the missing stereo information.”