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Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over 150 million people worldwide, [ 1 ] and they can be worn to correct vision or for cosmetic or therapeutic reasons. [ 2 ]
Adolf Gaston Eugen Fick (22 February 1852 – 11 February 1937) was a German ophthalmologist who invented the contact lens.He was the nephew of the German physiologist Adolf Eugen Fick, and the son of the German anatomy professor Franz Ludwig Fick.
August Müller (1864 – 1949), born in Mönchengladbach, was a medical student at the University of Kiel, Germany, and a pioneer in the manufacture of contact lenses.In 1889, he presented at the university his doctoral thesis titled Eyeglasses and corneal lenses [1] [2] in which he described his efforts to grind scleral lenses from blown glass.
Wichterle thought pHEMA might be a suitable material for contact lenses and gained his first patent for soft contact lenses. In 1954 this material was first used as an orbital implant. In 1957 Wichterle produced around 100 soft lenses from closed polystyrene molds but the edges split and tore as the lenses were removed. In addition, they ...
Newton K. (Uyesugi) Wesley (c. 1909 – July 21, 2011) [1] was an optometrist and an early pioneer of the contact lens.Wesley was a partner with George Jessen in the development and advancement of contact lens. [2]
Between the 11th and 13th centuries, so-called "reading stones" were invented. Often used by monks to assist in illuminating manuscripts, these were primitive plano-convex lenses, initially made by cutting a glass sphere in half. As the stones were experimented with, it was slowly understood that shallower lenses magnified more effectively ...
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