LATE 1400S
Leonardo da Vinci is cited as the first individual to develop the concept of a contact lens based on certain sketches. It is suggested, however, that the sketches dealt with the concept of image reversal and not the concept of a contact lens. |
LATE 1880SAdolf E. Fick, Eugene Kalt, and August Müller all produced glass scleral shells. Fick called them “Contactbrille” or contact spectacles, while Müller called them “Hornhautlinsen” or Corneal Lenses. Kalt was later the first to treat keratoconus by utilizing a glass shell approximating the radius of the normal cornea. |
1886Xavier Galezowski introduced using “plaquettes” to cover the corneal surface. These were gelatin squares soaked in mercury chloride and designed to reduce the possibility of infection after cataract surgery. This was considered the first use of a “therapeutic” contact lens. |
EARLY 1900SGerman companies Carl Zeiss and Müller led the optical industry in advanced usage of scleral contact lenses. In 1931, Joseph Dallos determined that tear flow beneath the contact lens was important and published the results of his study of 120 fittings. He later added fenestrations at the corneoscleral junction of the lens, which provided the flow of oxygenated tears to the underlying cornea. |
1934 – 1960 SIn 1934, Polymethylmethacrylate (PMMA) was the first plastic used for corneoscleral lenses. In 1948, Kevin Touhy was granted a patent for a corneal contact lens using PMMA that fit only on the cornea and not on the sclera, and became the contact lenses of choice throughout the 1950s and 1960s. |
1954 – 1971The first synthesis of a “soft” contact lens material, hydroxyethylmethacrylate (HEMA), by O. Wichterle and D. Lim (Czechoslovakian scientists) occurred in 1954. This was followed by the development of spin-casting of HEMA by Otto Wichterle, (Christmas night in 1961 using his son’s erector set). Spin-casting became an ideal way to manufacture soft contact lenses. Soft contact lenses were first introduced in the United States in 1971 by Bausch and Lomb who acquired the rights to spin-casting and HEMA in 1966 from the National Patent Development Corporation. |
197120/20 Optical Group estimates that the wholesale contact lens market was approximately $800,000. |
197920/20 Optical Group estimates that the wholesale contact lens market was approximately $480 million. |
1981First contact lenses for overnight wear were introduced. |
1982The first bifocal soft contact lenses were introduced (BiSoft® by CibaVision). |
1984Enhancement tinted soft contact lenses were released (SoftColors® by CibaVision). Introduction of hydrogen peroxide care systems also occurred. |
1987A major development occurred with the introduction of disposable soft contact lenses (Acuvue® by Vistakon). |
LATE 1980SA formulation of fluorosilicone acrylate material for rigid gas permeable (RGP) lenses became available; disposable soft contact lenses were introduced, along with soft contact lenses to change eye color. |
1990SDirect contact lens distribution to patients through companies or eye care practitioners who provided this option as a value-added service increased significantly. Daily disposable lenses were introduced along with RGP lenses with low silicone content and high Dk fluorosilicone acrylates. |
2001A new concept in extended wear (continuous wear up to 30 nights) was first approved by the FDA in the United States |
Posts Tagged ‘Aryan Color Lenses’
History of Contact Lenses
Posted: January 15, 2011 in Contact lensesTags: Acme 42, acuvue, Aryan Color Lenses, Bausch & Lomb, Biomedics, Calaview Color Lenses, contact lenses, contact lenses in banglore, contact lenses in Mumbai, Johnson & Johnson, lenses in bombay, Natural Color Lenses, Polylite 38
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Posted: January 15, 2011 in UncategorizedTags: acuvue, Aryan Color Lenses, Bausch & Lomb, buy lens, Calaview Color Lenses, Ciba Vision, contact lenses, contact lenses in banglore, contact lenses in Mumbai, Freshlook Colorblends, Johnson & Johnson, lenses in bombay
Buy Cheap Contact Lenses Online In INDIA
Posted: January 15, 2011 in Contact lensesTags: Acme 42, acuvue, Aryan Color Lenses, Bausch & Lomb, Biomedics, buy lens, Calaview Color Lenses, Ciba Vision, Color Lenses, contact lenses, contact lenses in Mumbai, Cooper Vision, Ey-art, Freshlook Colorblends, Igel UV Blue, Johnson & Johnson, lenses, lenses in bombay, Magic Color Lenses, Natural Color Lenses, Polylite 38, Style, Toric Lenses
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