Feature
The Evolution of Artificial Retinas
A new technology that combines optics and neurobiology is slowly illuminating a dark world for some people with blindness caused by retinal damage.
Barbara Campbell trains to identify letters using the artificial retina.
At the Popular Mechanics Breakthrough Awards in 2010, Barbara Campbell said, “I can see trees and the bus poles, where the bus stop is … things like that.” That might not sound like much … unless you consider that this woman was completely blind for 20 years. Now in her mid-50s, she started to experience visual problems in her adolescence. Today she has limited sight because of artificial-retina technology.
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