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Before discussing the use of Assistive Technology for vision loss, it is necessary to discuss the nature of vision itself and the consequences of vision loss. Vision is by far our most powerful sense. The two eyes provide as much input to the brain as all other senses combined. Although it is common to think that we “see” with our eyes, most of the visual processing takes place in the brain. Indeed, one hypothesis states that in the course of evolution early brains may have evolved to process the input from primitive eyes (Ivan Schwab 2011). An isolated eye cannot produce vision, but when we dream, our brain can produce vivid visual images, without any input from the eyes.
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