An interesting and unique story is to find that the first sketches of Leonardo da Vinci, the first glass contact lenses marketed in 1927, who invented the famous "rigid lenses" and "soft lenses", as well as the huge amount of money that They paid in their time the most prestigious laboratories to get their patents.
Around 1508, Leonardo da Vinci considered that the eyes were the most important organ of the human body and added in the margin of one of his writings a drawing of an optical system consisting of a glass hemisphere filled with water with a face submerged in it. . A century later René Descartes, in 1636, designed a tube with a curvature similar to that of the cornea, filled with water, through which one looked. Almost two centuries later, in 1823, the British astronomer Sir John Herschel, suggested the creation of a lens with the shape of the eye that would adapt to it.
Curiosities of history that demonstrate that in the past there were brilliant minds ahead of their time that were pioneers in inventions that thanks to technology were executed in the present ...