Tag: Myopia
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The history of eyeglasses
Efforts to improve vision date back to the ancient civilizations of India and China. Greek scholars such as Ptolemy and Euclid endeavored to understand the physics of light refraction, the mechanisms of lenses, and how their properties can enhance vision and literacy. The Romans magnified the letters they were looking at by placing reading stones…
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“Troubled in my eyes”: the risks of reading and writing
Katherine HarveyLondon, England, United Kingdom On January 1, 1660, a young Londoner named Samuel Pepys began to keep a diary. Over the next nine and a half years, he recorded both events of national significance—the Restoration of King Charles II, the Great Plague, and the Great Fire—as well as the minutiae of his private life,…
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Medicean optics: An analysis of Raffaello’s Portrait of Pope Leo X and Two Cardinals
Vincent P. de Luise New Haven, Connecticut, United States Myopia, or nearsightedness, is the most common global eye disorder of refractive error, with significant global public health consequences.1 Along with cataract, macular degeneration, infectious disease, and vitamin A deficiency, myopia is one of the most important causes of visual impairment worldwide.1 In the United States, approximately…