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What exactly is a blind spot, and why do we have one?

July 28, 2008

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A blind spot is any region of the visual field (i.e. what your eye registers) that is obscured. In principle you can have more than one blind spot, or "scotoma," but when people refer to "the" blind spot they typically mean a region in the back of the eye that does not have light-sensitive cells. This is the "physiological" blind ... (Full article: 268 words)

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