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Halloween contact lenses may look cool, but they're also risky. Here's why you want to see your eye doctor first. Halloween costume contact lenses can be dangerous — here’s how to wear them safely
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From pirates to lifeguards, nothing beats a classic Halloween costume. It isn’t that we don’t enjoy going above and beyond for the annual holiday (i.e., dressing up like Harley Quinn and ...
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Artist's impression of Leonardo's method for neutralizing the refractive power of the cornea. Leonardo da Vinci is frequently credited with introducing the idea of contact lenses in his 1508 Codex of the eye, Manual D, [9] wherein he described a method of directly altering corneal power by either submerging the head in a bowl of water or wearing a water-filled glass hemisphere over the eye.
The first contact lenses were made of glass, in 1888. Initially the glass was blown but soon lenses were made by being ground to shape. For the first fifty years, glass was the only material used. The lenses were thin, yet reports of injury were rare. In 1938 perspex (polymethylmethacrylate, or PMMA) began to replace glass in contact lens ...
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