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contact lenses
When there they invented and when did people start wearing them?
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For more on marking an answer as the "Best Answer", please visit our FAQ.The idea of applying a corrective lens directly to the surface of the eye was first proposed as early as 1508, by Leonardo da Vinci and similar concepts surfaced from Ren� Descartes in 1636, but it was not until 1887 that the German physiologist Adolf Eugen Fick constructed the first successful contact lens.
The most commonly used contact lenses today are of the soft variety, invented in 1961 by the Czech chemist Otto Wichterle (1913�1998).