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Contact lenses are a modern technology with a historical perspective. First conceptually illustrated by Leonardo DaVinci, these tiny lenses were not actualized for centuries. Today’s technology is based upon early lenses that were extremely uncomfortable at best and dangerous at worst. The contact lenses of just twenty years ago have been rapidly redesigned, replaced and all but forgotten. Experimental contact lenses that are in early testing phases, or conceptual design right now, indicate a bright future for the contact lens industry.