|
Development of contact lenses
None of us needs an explanation of the value of vision,
But we sometimes not realizing that proper eye care...
Vision Care :: Contact Lenses.
Historical accounts of the origins and development of contact lenses are full of fascinating anecdotes and debatable claims.
First publication rights USA 2017 .com.
Historical accounts of the origins and development of contact lenses are full of fascinating anecdotes and debatable claims.
1508 :: --->>>
Leonardo Da Vinci is often cited as being the first to illustrate the concept of contacts in 1508.
Leonardo Da Vinci sketches and describes several forms of contact lenses.
But his idea of a glass capsule filled with water and placed against the eye would not really fit all that well.
His proposed devices were not anticipated as truly wearable.
1632 :: --->>>
Rene Descartes.
Rene Descartes of France suggests the corneal contact lens.
1801 :: --->>>
Thomas Young.
Probably the first person to wear what could be called contact lenses was a farsighted British physician named Thomas Young.
In 1801, he removed small lenses from his microscope, covered the edges with soft wax, and put them into his eyes.
Referring to the result as "artificial nearsightedness", he was then able to calculate the precise refraction he needed.
1827 :: --->>>
John Herschel.
English astronomer Sir John Herschel suggests grinding a contact lens to conform exactly to the eye's surface.
1887 :: --->>>
F.E. Muller.
German glassblower F.E. Muller is thought to have produced the first "eye covering designed to be seen through and tolerated" in 1887.
1888 :: --->>>
Eugen Fick.
A year later, Swiss physician A. Eugen Fick and French optician Edouard Kalt almost simultaneously reported using contact lenses to correct optical defects.
Many feel contact lenses as practical refractive devices came into being as a result of Fick's experiments.
Using molds to make the glass lenses, he tried them on rabbits and cadavers before placing them into his own eyes.
He soon started having lenses ground to better control their optical properties, calling them "contact spectacles".
Even though they could only be worn for a short time, Fick's lenses led the way toward development of modern contact lens technology.
1929 :: --->>>
Joseph Dallos.
Joseph Dallos, a Hungarian physician, perfects methods of taking molds from living eyes so that lenses can be made to conform more closely to individual sclera.
1936 :: --->>>
William Feinbloom.
The first American-made contacts, which also introduced the use of plastic, were fabricated by New York optometrist William Feinbloom in 1936. The American Optometric Association formally recognized the fitting of contacts as part of the practice of optometry in 1945. The first contacts designed to cover only the cornea did not appear until three years later.
Developments in contact lens design, materials and manufacturing accelerated in the 1960s and 1970s, and the flurry of refinements in the 1980s and 1990s produced dramatic changes in their overall popularity and patterns of use.
1950 :: Dr. George Butterfield, an Oregon optometrist, designs a corneal lens, the inner surface of which follows the eye's shape instead of sitting flat.
1960 :: Otto Wichterle and Drahoslav Lim experiment with contact lenses made of a soft, water-absorbing plastic they developed.
1971 :: The soft lens became available for commercial distribution in the United States.
1978 :: The first toric contact lens was approved for distribution in the United States.
1979 :: The first rigid gas permeable (RGP) contact lens made of co-polymers PMMA and silicone became available for commercial distribution. Many silicone-acrylate lenses are now available.
1980 :: A tinted daily wear soft lens became available for commercial distribution.
1981 :: Extended wear soft lenses became available for commercial distribution.
1982 :: Bifocal daily wear soft contact lenses became available for commercial distribution.
1983 :: The first tinted RGP lens became available for commercial distribution.
1986 :: An extended wear RGP lens became available for commercial distribution.
1987 :: Disposable soft contact lenses became available for commercial distribution; a soft contact lens to change eye color became available for commercial distribution; first multipurpose lens care product made available for commercial distribution. A new formulation of fluorosilicone acrylate material for RGP lenses became available for commercial distribution.
1991 :: Planned replacement contact lenses now available on the market. Daily-wear two-week replacement lenses now available on the market.
1992 :: Disposable tinted contact lenses available on the market.
1995 :: Daily disposable lenses available on the market; RGP lenses with low silicone content / high Dk fluorosilicone acrylates became available.
1996 :: First disposable lenses using ultra-violet absorber are available in the U.S.
1998 :: First multifocal disposable soft lenses available.
1999 :: New generation extended wear soft lenses introduced.
Read more information about Vision Care on the webpage dedicated to
1-800 Contacts --->>>...
Where to go?
Click the links above or/and...
Email :: send your thoughts about "Contact Lenses" directly to president of USA in 2017. Let's all together make our Vision Care world even better.
Vision Care :: Everybody understand the value of vision. Eyesight accounts for about 75 percent of our total perception, it is the most important way we experience life. But as with our other senses: smelling, hearing, tasting and touching, we sometimes take seeing for granted, not realizing that proper eye care, including regular professional examinations, is the key to long term good vision. Let's have a closer look at our eyes and how they work, common vision problems, and wearing corrective lenses in general.
1-800 Contacts :: we are dedicated to providing you with a simple, fast, and less expensive way to replace your contact lenses. We don't sell a myriad of other products; we just focus on contact lenses and strive to be the best at it. Therefore, when you choose to order your contact lenses from 1-800 Contacts you will find: The Highest Quality Lenses, Order with Confidence, The World's Largest Inventory and 100% Guarantee - At 1-800 Contacts your satisfaction is guaranteed. If you are not pleased with your order we will be happy to make it right.
USA 2017 :: main page :: Some people think about the future. We make the future now. Peace, freedom and happiness for everyone in the USA and the whole Earth in 2017.
If you plan to come back later...
Please remember this page -
URL: http://www.usa2017.com/vision-care/contact-lenses/history.html
|
ATTENTION!
Thank you for visit! I wish you great success in present and future!
