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The first wearable eye glasses were invented around 1284 by Salvino D'Armate.
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James Ayscough invented sunglasses with double-hinged side pieces. The lenses were made of tinted glass as well as clear. Ayscough felt that white glass created a glaring light, that was bad to the eyes. He advised the use of green and blue glasses. Ayscough's glasses were the first sunglass like eyeglasses.
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Edwin Land invented a polarizing filter. It was the first modern filter to polarize light. Polarizing celluloid was a critical factor in creating polarizing sunglass lenses that reduces light glare.
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Glasses have evolved a lot since the Renaissance. There is now a huge selection of glasses that are lighter and not easily broken. They come in different sizes, shapes, and colors. Some lenses include polycarbonate, trivex, high index plastic, aspheric, photochromic, and polarized.
