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Benjamin Franklin | The Invention of Bifocal Lenses | The History of Optometry
2:23
YouTubeContact Lens King
Benjamin Franklin | The Invention of Bifocal Lenses | The History of Optometry
Benjamin Franklin and the Invention of Bifocal Lenses History of Optometry: Episode 8 Albeit there are many that believe Benjamin Franklin invented the bifocal lenses there are equally as many that believe that he was only the first to introduce them to North America. In fact, many attribute the idea of split spectacles to individuals from both ...
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