1508: Leonard da Vinci first has the idea of placing a corrective lens directly onto the surface of the eye and draws sketches of his idea.
1636: Rene Descartes writes Dioptric, in which he explains his theories on light and vision and proposes the idea of a corneal contact lens.
1685: Philippe de la Hire creates drawings that illustrate how a concave lens placed on an eye could send light into the retina.
1801: Working from Descartes' idea, Thomas Young creates a corneal contact lens to correct his own vision.
1887: Adolf Eugen Fick, a German physiologist, creates the first successful contact lens
1887: F.E. Muller, a German glassblower, creates the first glass contact lens.
1940s: Corneal contact lenses are sold commercially for the first time.
1961: Czech chemist Otto Wichterle invents soft contact lenses.
1971: Bausch & Lomb introduces the first commercial soft contact lens.
1981: After FDA approval, the first contact lenses suitable for extended and overnight wear are sold.
1991: Frequent-replacement soft lenses are sold for the first time.
1992: The first colored disposable soft lenses are created.
1995: One-day disposable lenses are sold for the first time.
1996: Disposable lenses featuring UV filters are introduced in the U.S.