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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] In 2010, the worldwide market for contact lenses was estimated at $6.1 billion, while the US soft lens market was estimated at $2.1 billion. [3]
The flange distance between the front surface of the lens mount and the film plane is only 29 millimetres (1.1 in), and Contax released the GA-1 adaptor which allowed the use of Contax/Yashica mount lenses. [5] Unlike most bayonet-mount lenses, the Contax G mount uses a breech-lock mechanism similar to the manual-focus Canon FD and FL mount. [2]
Google Contact Lens was a smart contact lens project announced by Google on 16 January 2014. [1] The project aimed to assist people with diabetes by constantly measuring the glucose levels in their tears. [2] The project was being carried out by Verily and as of 2014 was being tested using prototypes. [1]
In the US market, soft contact lenses are approved by the US Food and Drug Administration. [2] The American Optometric Association published a contact lens comparison chart called Advantages and Disadvantages of Various Types of Contact Lenses on the differences between them. [3] These include: soft contact lenses; rigid gas-permeable (RGP ...
Pages in category "Contact lenses" The following 27 pages are in this category, out of 27 total. This list may not reflect recent changes. ...
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