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Period: Jan 1, 1000 to Dec 31, 1010
Italian glass blowers make hand-held magnifiers (reading stones)
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Period: Jan 1, 1100 to Dec 31, 1199
First version of sunglasses created in China with flat smokey quartz to reduce glare
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Period: Jan 1, 1285 to Dec 31, 1289
Earliest versions of optical glasses made with Quartz lenses and it was put into bone leather or metal for magnifying
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Period: Jan 1, 1300 to Dec 31, 1399
Convex lens for far-sightedness were invented in Venice.
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Period: Jan 1, 1451 to Dec 31, 1451
Concave lens to correct near-sightedness are created in Germany.
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Period: to
Frames to keep glasses on are created in Spain with silk ribbons to tie behind the head.
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Period: to
Edward Scarlett (optician) from London creates temples that are rigid that are placed atop ears
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Period: to
James Ayscough from London designed spectacles with double hinged temples
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Period: to
Benjamin Franklin invents bifocal lens
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Period: to
Sir George Airy invents the first lens to correct astigmatism
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Period: to
John Hawkins invents trifocals lenses
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Period: to
Essilor Int'l of France creates the first progressive multifocal lens